ORCHARD PARK, N.Y. -- LeSean McCoy can finally come clean about the bitter feelings he once had toward 49ers coach Chip Kelly.Yes, the Bills running back acknowledged he was stung by how Kelly, during his tenure coaching the Eagles, discarded McCoy by trading him to Buffalo in February 2014.To sit here and tell you that it didnt affect me last year, I would be lying, he said. But Im passed that.McCoy can put his emotions aside after getting his personal payback Sunday, when he matched a career high by scoring three touchdowns in a 45-16 win over the 49ers (1-5).For McCoy, the 140-yard rushing performance was personal because it erased lingering questions whether the NFLs 2013 rushing leader had lost a step last year.I think this is the first year that Ive really been doubted, as in, `Is this kid good or is he not good? McCoy said. Yeah, it can definitely drive you.McCoy is on a roll having combined for 470 yards rushing and six touchdowns (including one receiving) over his past four games.Its a stretch that coincides with coach Rex Ryan firing offensive coordinator Greg Roman following an 0-2 start and promoting running backs coach Anthony Lynn.The Bills (4-2) have won four straight for the first time since opening the 2008 season 4-0. And their running attack is leading the charge. Buffalos 312 yards rushing against San Francisco was the fifth highest in team history and most since 1992.The 49ers by comparison are struggling, even with Colin Kaepernick making his debut at quarterback after Blaine Gabbert was benched last week.Kaepernick went 13 of 29 for 187 yards and a 53-yard touchdown to Torrey Smith. But the offense showed familiar sputters by settling for three field goals, giving the ball up on downs and a punt on six drives that crossed midfield.And Kaepernick cant help the 49ers ongoing struggles in stopping the run. San Franciscos run defense has allowed a combined 981 yards and nine touchdowns in its past five games, all losses.Yeah, it is embarrassing, safety Eric Reid said.A number of things that stood out Sunday:FIRST SPIKEMcCoy celebrated his third touchdown by handing the ball to guard Richie Incognito, who spiked it in the end zone. It was a reward to Incognito for opening the hole that led to the 18-yard run four minutes into the fourth quarter.Thats the spoils of victory, said Incognito, who said it was the first time hes ever spiked the ball. You get in the end zone so many times, you have fun with it. You spike it.SECOND START?Kelly isnt saying whether Kaepernick has earned a second consecutive start next week, when the 49ers host Tampa Bay.Yeah, well see, he said. I thought he was OK.Kaepernick said he tuned out the insults and fans chanting USA! USA! USA! once he kneeled during the national anthem in continuing his protest against racial oppression and police brutality.FOURTH-AND-0The Bills twice stopped the 49ers on fourth down, including a fourth-and-1 opportunity at Buffalos 40 with 4:35 left in the third quarter, and San Francisco trailing 17-13. Tyrod Taylor responded with a four-play, 60-yard touchdown drive capped by a 30-yard pass to Justin Hunter.Bills cornerback Nickell Robey-Coleman forced a fumble by standing up Keshawn Martin during a kickoff return. And the defense had three sacks, upping its total to 20 -- one short of last year.NO HYDE49ers starting running back Carlos Hyde missed most of the second half because of a shoulder injury. He finished with 14 carries for 52 yards.Kelly didnt have an update on the players status. Hyde leads the team with six touchdowns.SHAQ IS BACK?Bills rookie first-round draft pick Shaq Lawson is eligible to be activated as early as Monday after opening the season on the physically unable to perform list. Selected 19th overall out of Clemson, the pass-rushing threat has been out since May, when he had surgery to repair a shoulder injury that had nagged him in college.---AP NFL website: www.pro32.ap.org and http://twitter.com/AP-NFLCustom Miami Marlins Nike Jerseys . The 25-year-old Japanese star has officially been posted by his club team, the Rakuten Golden Eagles. Custom New York Mets Nike Jerseys . Down by seven with 90 seconds left in regulation, thats where they looked comfortable. https://www.custombaseballnikejerseys.com/ . -- Catcher Brett Hayes has agreed to a $630,000, one-year contract with the Kansas City Royals, avoiding salary arbitration. Fake Custom Nike Baseball Jerseys . LOUIS -- Valtteri Filppula assisted on three of Tampa Bays four goals, and the Lightning beat the St. Custom Los Angeles Angels Nike Jerseys . It was Kerbers third final of the year after losing to Anastasia Pavlyuchenkova of Russia in Monterrey in April and to Petra Kvitova of Czech Republic in Tokyo two weeks ago. The 10th-ranked German improved her record in finals to 3-5. BOSTON -- The Celtics dont want to rely solely on Isaiah Thomas to win.But on some nights, putting the ball in the All-Star guards hands is simply the best option.Thomas scored 22 of his 30 points in the fourth quarter in Bostons 90-83 victory over the Dallas Mavericks on Wednesday night.He scored 20 of Bostons final 24 points to help the Celtics beat back a late Mavericks surge.Avery Bradley added 18 points and 13 rebounds.After the Mavericks took a 70-66 lead, Thomas scored Bostons next 13 points to put the Celtics back in front 79-76. They never trailed again.After one of the baskets late in the run Thomas ran down the court and flashed two thumbs up.I guess I just like that quarter, Thomas said. Sometimes guys get a little tighter, and then the pressure gets a little tougher for them. I guess I like the pressure.Harrison Barnes led the Mavericks with 28 points. Wesley Matthews added 22.Dallas, which was already missing several players because of injuries, lost two more. Starter Deron Williams exited in the second quarter with a left calf injury, and J.J. Barea was helped off the court in the fourth quarter after straining his left calf as well.Coach Rick Carlisle said it appears Barea will be out for a while, but added that he didnt think it was real serious. He said its his understanding that Williams just experienced some tightness.The Celtics outrebounded Dallas 53-32, which coach Brad Stevens said is a welcomed sign for a team that struggled in that department early in the season.Maybe its the law of averages, and some just bounced our way, Stevens said. But were defending at a better rate than we were.TIP-INSMavericks: Have lost three straight. ... Had a season-low 31 points at the first half. ... Dirk Nowitzki missed his fifth straight game with a right Achilles strain.Celtics: Thomas has scored 20 or more points in each of the first 11 games of the season. ... Scored a season-low 90 points. ...Tied their season high with 19 turnovers. ... Bosstons 10-point second quarter was its lowest scoring output in a second quarter this season.dddddddddddd ... Al Horford remains in the NBA concussion protocol and sat out his eighth straight game. Jae Crowder missed his seventh consecutive game with a sprained left ankle.TEAM MEETINGCeltics guard Marcus Smart said the team held a meeting after its blowout loss to the Wizards on Nov. 9 to help refocus its commitment on the defensive end.It was no coaches, just us, Smart said. We had to look ourselves in the mirror and come to the conclusion that it is on us and were the ones playing and that we have to get it together.Bradley said the conversation was frank and honest.Just that we need to hold each other accountable, he said. We werent playing to our ability. We had two or three guys playing hard at the defensive end, but the other three guys werent. And we needed everyone playing hard consistently as a team. Tonight I feel like was one our best defensive games.NO FREEBIESThere werent many trips to the free throw line in the first half for either team. The Celtics were just 2 for 6 in the half, and the Mavericks missed their lone attempt in the first quarter. Neither team attempted a free throw in the second quarter.INJURY UPDATEStevens said Crowder would practice Friday, but that he does not expect him to play Saturday against Golden State. Stevens said his last report on Horford was that the big man had a great workout on Wednesday.Carlisle said Dirk Nowitzki is making progress as well.It feel likes hes getting close, he said.UP NEXTMavericks: Return home Friday to host the Grizzlies, before heading back on the road for trips to Orlando and San Antonio.Celtics: Host the Warriors Friday, and then begin a three-game trip with a stop in Detroit on Saturday.---Follow Kyle Hightower on Twitter at http://www.twitter.com/khightower ' ' '