Swansea City forward Michu could be out of action for four weeks after injuring his ankle during the 1-0 defeat by Cardiff City, manager Michael Laudrup revealed on Wednesday.
The 27-year-old, Swansea's top scorer last season in his first campaign at the club, had to be substituted in the 65th minute of Sunday's loss at Cardiff in the Premier League.
He had already been ruled out of Swansea's Europa League tie with Kuban Krasnodar on Thursday but, speaking ahead of the game in Russia, Laudrup said that the injury was more serious than he had feared.
"Michu, our top scorer last season, has been struggling for a few weeks and is not 100 percent and unfortunately he is out again for maybe three to four weeks," Laudrup told a press conference, in comments reported in the British media.
Laudrup said that Michu, who made his international debut for Spain last month, would use the enforced break to get treatment on some longstanding knee problems.
"When I say he has not been at his best, it is because he has been struggling with both his knees for many weeks, but he wanted to play anyway and he is one of our most important players," said the Dane.
"So with this ankle injury, hopefully he can get both his knees sorted as well. He will be away in Spain for a few days for some injections."