"We got guys who are coming in here who are going to keep playing, keep trying to get it done," guard Kyle Lowry said. "Greivis, Pat, Chuck and John, they all got that mental toughness, and that just added to what we were building."
Toronto was impressive in rallying from a 19-point deficit in Friday's 109-108 overtime win at Dallas before an even more notable victory Sunday.
Lowry scored 22 points and Amir Johnson had 17 and 13 rebounds as the Raptors used a 29-14 scoring edge in the fourth quarter for a 104-98 victory that ended Oklahoma City's nine-game win streak and 13-0 home start.
Toronto is seeking its first five-game road win streak since Nov. 14-Dec. 1, 2001. The Raptors are 7-6 on the road compared to 4-8 at home.
"It's one of those mysteries we have, of our focus on the road," coach Dwane Casey said. "We're a different team. I see it in our eyes before the game."
The Spurs will have Kawhi Leonard back in the lineup after he missed Saturday's 113-100 home loss to the Thunder following a dental procedure. Coach Gregg Popovich did not use Leonard's absence as an excuse.
"Well, I'm sure we'd like to have Kawhi, but that happens to every NBA team at some point in the season," Popovich said. "You don't lose just because of that. We would have loved to have had him, but they played better than we did (Saturday) for more of the game."
The Spurs turned in their worst defensive quarter of the season as they gave up 40 points in the second. One of their poorer such efforts came in the first meeting with the Raptors, who led 36-24 after 12 minutes.
Tony Parker, who returned Saturday and scored 23 points after missing two games with a shin bruise, believes that San Antonio will bounce back against the Raptors and Wednesday against Houston.
"We'll just regroup and we'll play better on Monday and (then) get ready for the big one on Christmas Day," Parker said.
The Spurs, who are shooting 48.9 percent to lead the Western Conference, are 9-1 against East foes.
Only three of the nine Raptors who logged at least 12 minutes Sunday have won at San Antonio in their careers -- Johnson, Salmons and Lowry.