JOHANN Berg Gudmundsson will miss Burnley's Europa League play-off round second leg tie with Olympiakos with a hamstring injury.

But Sean Dyche said the winger's injury was 'not too serious', although he will miss Iceland's games during the international break next week.

However, Matej Vydra could make his Clarets debut against the Greek side at Turf Moor tomorrow night with Dyche yet to make a decision on his final starting XI.

The £11million man could be involved for the first time as Burnley look to overturn a 3-1 deficit to make the group stages.

"He’ll be around it. I haven’t made a decision on the actual side yet, I’ve got the basis of it," Dyche said.

"He played against yesterday but just 60 minutes to keep his eye in."

On Gudmundsson, Dyche added: "It’s not too serious. He won’t make the international games during the break.

"It’s a loss to us, he had a good season last season, a good summer and he’d started this season well."

Steven Defour remains absent but Robbie Brady trained again on Wednesday morning and Dyche is pleased with how the Republic of Ireland international is shaping up.

The Under-23s play twice during the international break and Brady could step up his recovery in those games.

"We’ve still got to get him through a decent games programme and get him properly fit, but he’s looking bright, he’s really happy to be back out there," Dyche said.

"He’s had a couple of niggly injuries on his way back to full fitness, so he’s had an interrupted games programme so we’ve got to pick that up again next week."