Pompey rocked by Sherwood injury
The midfielder was felled following a crunching tackle from his former Spurs team-mate Mauricio Taricco and received lengthy medical treatment on the pitch before being stretchered off to hospital where he was to undergo X-rays.
Sherwood is now out of Sunday's Premiership clash with Chelsea and could be facing a lengthy spell on the sidelines if Redknapp's worst fears are confirmed, making him the fourth central midfielder currently in Pompey's treatment room.