Tottenham Hotspur midfielder Dele Alli will be sidelined for "a few weeks" with the knee injury that ruled him out of Sunday's north London derby with Arsenal.
Alli, 20, suffered a knee injury during a training session on Saturday (5 November) that saw him miss the trip to the Emirates, where his side picked up a draw to extend their undefeated start to the season.
The midfielder was omitted from the England squad for upcoming internationals with Scotland and Spain as a result but Spurs boss Mauricio Pochettino is hopeful the problem is not a serious one.
"It was bad luck yesterday in the training session, he twisted his knee. We need to assess him today and tomorrow," Pochettino said, Sky Sports report. "He'll be out for a few weeks. We hope it is not a big issue. It is bad luck. He was in the team, he is an important player, but that is football."
Following the international break, Tottenham resume their Premier League campaign at home to West Ham United on Saturday 19 November before travelling to Monaco for a crucial Champions League group clash three days later.
Pochettino's side then travel to Stamford Bridge for a third consecutive London derby in the league to take on Chelsea on 26 November.
While Alli missed Sunday's draw, Harry Kane made his long-awaited return having been sidelined with an ankle injury since September. After scoring the penalty that rescued his side a point, Pochettino played down suggestions he had taken a gamble in recalling the 23-year-old so soon after his return to training.
"If we make a decision it's because we know it's not a gamble," the Tottenham boss said. "He was assessed every day. Harry Kane was working very hard on the training ground the last few weeks. When you decide to put him in it's because you believe he can do well."