Torquay United midfielder Aman Verma is undergoing tests after collapsing at home after a training session.
The 27-year-old was sick during a gym session last week and was taken ill again later in the evening.
Torquay manager Kevin Nicholson said they didn't want to take any chances so opted for testing.
He's very worried because he thought it was an off day, and it might just be a virus that has hit him hard. But with all that's gone on lately in football with things like heart problems we couldn't take any chances.
It started with headaches, which led to Verma collapsing. The manager says it's hoped the results will come through on Monday, but does mean the midfielder will have to miss Torquay's game with Chester on Saturday.
He's feeling fine now but the doctors have told him to do pretty much nothing, so he's bored out of his mind as he just has to rest until he's given the all-clear.
Verma joined Torquay on loan from Kidderminster last November and the deal has since been extended until the end of the season.
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Torquay United have been in talks with a development company and Torbay Council over an ambitious new stadium scheme.Read the full story ›
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Torquay United had to settle with a point in the National League.
They drew 2-2 at Woking - Courtney Richards and Tyrone Marsh scoring for the visitors.
Torquay go looking for their second victory in four days tonight when they travel to Woking in the National League.
The Gulls secured their first win under new manager Kevin Nicholson on Saturday. Another win tonight could move them out of the relegation zone.
Torquay are preparing for their first game under new management. The Gulls travel to Aldershot tomorrow without a win in their last 10 matches but player manager Kevin Nicholson says everyone's starting with a clean slate.
All the stuff that's gone on behind the scenes, all the stuff that's gone on on the pitch, it doesn't matter. It was nothing to do with me. The players were here but as far as I'm concerned, what they do from now on is all that matters.
Torquay United have announced Kevin Nicholson will take over as manager following the departure of Paul Cox earlier this month.
The 34 year-old is well known to fans of Torquay having appeared over 300 times for the team during a seven-year period.
We caught up with him to hear about his plans for the club, which has had some troubled times recently:
Plymouth Argyle fans showed their support tonight for their troubled neighbours Torquay United as the Gulls took on Boreham Wood at Plainmoor.
More than 100 Pilgrims fans were expected at the match after Torquay lost both their manager and director of football.
Torquay lost the match 2-1 - their goal coming courtesy of Alex Fisher.