NEW DELHI: Las Vegas Raiders running back Josh Jacobs is doubtful for the upcoming game against the Indianapolis Colts as he continues to recover from a quadriceps injury. Jacobs has missed the last two games, and interim coach Antonio Pierce indicated that a final decision on his availability would be made closer to game time on Sunday. Pierce commented, “That’s going to be a game-time decision. I mean, no need to rush it. If he can go at one o’clock on Sunday, I’m happy with that.” Jacobs has been a key contributor for the Raiders this season, accumulating 805 rushing…