Liam Lawrence fears he has suffered another injury set-back as he attempts to inspire Pompey’s play-off push.
The Republic of Ireland midfielder will today undergo a scan on his left knee.
Lawrence pulled up at the end of the first half against Reading on Saturday with the complaint.
The Blues skipper reappeared after the break and managed to complete the second half of the 2-0 Madejski Stadium defeat.
But he admits he had to play through the pain in the process. The latest concern is unrelated to the calf problem which kept him out for five matches recently.
Regardless, Lawrence is hoping he has not picked up another blow as he looks to assist Pompey’s challenge for the play-offs.
He said: ‘I felt a sharp pain in my left knee.
‘Something tweaked and it was a bit sore after the match.
‘I couldn’t sprint properly for a few minutes, so we will just have to wait and see.
‘Hopefully a scan today will tell me everything is alright.
‘It just seems to be one thing after another at the minute and it’s doing my head in.
‘This could be a cartilage maybe, a tiny tweak. It was aching after the game.
‘I’ve had my calf injury, then it got well, then I did it again and spent more time on the sidelines.
‘Now I just want to get a good run in the side and get back to scoring goals and winning games.’
Lawrence has scored eight goals in 29 games since arriving from Stoke at the beginning of the season.
He has been one of the key performers in a side which has risen from the foot of the league and on to the coat tails of the play-offs.