DENVER (AP) Devon Toews scored 48 seconds into overtime and the Colorado Avalanche overcame a three-goal deficit to beat the Buffalo Sabres 6-5 on Thursday night and extend their winning streak to six games.After trailing 3-0 in the second period, the Avalanche regrouped and tied it with 6.8 seconds remaining on a shot from Jonathan Drouin. That set the stage for Toews, who stole the puck and scored on a breakaway.It was the second time this season the Sabres blew a multi-goal lead against Colorado. The Avalanche came back from a 4-0 deficit for a 5-4 victory Dec. 3 in Buffalo.Cale Makar had two goals, while Ross Colton and Mikko Rantanen also scored.Jason Zucker scored three times for Buffalo