Borussia Dortmund forward Serhou Guirassy is likely to be available for the Bundesliga match against Freiburg on Sunday.

After suffering a mild concussion and taking a few days off from training, Guirassy is now "doing well," coach Niko Kovac said.

The player suffered the concussion after a collision with Ozan Kabak in last weekend's 2-1 defeat to Hoffenheim.

"He trained with the team again today," Kovac said during a news conference on Friday.

Forward Karim Adeyemi, however, won't be available due to muscular issues. Kovac expects Adeyemei, midfielder Felix Nmecha and defender Niklas Süle, both nursing knee injuries, to return before the season ends.

Freiburg suffered a 2-1 defeat to VfB Stuttgart in the German Cup semi-finals on Thursday, but Kovac is not counting on the opponents' tiredness.

"This is a really fit team. They're going to give their all for the full 90 minutes. We're going to have to give it our all too," he said.

Bayern Munich already claimed the Bundesliga title last weekend and second-placed Dortmund are now focused on securing Champions League qualification.