Rene Howe will miss Torquay's crunch play-off semi-final second leg at home to Cheltenham.
The Gulls' Player of the Year and leading scorer, with 14 goals to his name this season, limped out of Sunday's 2-0 first-leg defeat at Whaddon Road after just 21 minutes nursing a hamstring injury.
Howe, who has also been struggling with groin and knee problems recently, will now miss out at Plainmoor and is battling to make the Wembley final on May 27 should Torquay overturn the two-goal deficit.
Taiwo Atieno replaced the striker on Sunday and is expected to start from the off this time around.
Forward Danny Stevens missed the first leg altogether due to illness but he is likely to be okay.