Defoe and Larsson had to be taken off during Sunderland’s match against Stoke, after picking up injuries in the contest.
Defoe damaged his hamstring in the first-half of the match against Stoke, while Larsson injured his knee in the fixture.
However, Allardyce doesn’t feel that either of the problems are too serious, and he suggested that they are only likely to miss Sunderland’s match against Arsenal this weekend.
“Jermain suffered an injury to his hamstring not his ankle – he felt it go sadly – and obviously Seb Larsson (has injured his) medial ligaments,” Allardyce said.
“Hopefully they will be fit as quickly as possible – they probably aren’t going to be fit for next weekend but hopefully the week after.”
Thankfully for Sunderland, Defoe and Larsson’s injuries did not hamper their chances of winning against Stoke.
The Black Cats ran out 2-0 victors in the match, and they climbed out of the relegation zone as a result.
With Defoe sidelined it seems likely that Duncan Watmore will start against Arsenal, and the youngster will be keen to take his chance.
Watmore has been utilised as an impact substitute by Allardyce so far, but he could have a chance to start at the Emirates Stadium.