Exeter are awaiting news on the extent of a freak foot injury suffered by in-from forward Greg Fisilau.

"Greg's hurt his foot in one of those weird ways," Exeter director of rugby Rob Baxter told BBC Radio Devon.

"Getting off a piece of equipment in the gym he stood on something and just damaged the underside of his foot.

"We're hoping it's not too long but it's one of those ones that, until the swelling goes down and we can really investigate it, we're not quite sure."

Former England Under-20 player Fisilau, who moved to Exeter after the demise of Wasps last year, has impressed this season, scoring three tries in all competitions - including two in the first three Premiership games of the season.

Before Sunday's win over Bristol - which kept Exeter top of the Premiership - Baxter was keen to praise the impact of the young back-row.

"He's still a very young man and got lots to learn, but there's huge improvements around the things he's doing around set-piece, around the contact area and of course he's got a massive enthusiasm to get on the ball and be a ball carrier," he told BBC Sport.

"He's deceptively strong and he's actually deceptively big and heavy and strong compared to what you sometimes think when you look at him.

"The willingness to be on the ball and repeat carry, and he kind of nearly always slides off, gets off, bounces off that first point of contact, so it always attracts defenders to him.

"He's been a very important player for us at the start of the season and he attracts a lot of defenders, that creates space and that helps us create opportunities and create tries and I'm delighted with how he's started the season."