Niko Kovac has confirmed Manuel Neuer suffered an injury to the same calf that kept him out of action earlier this month in Bayern Munich's 4-1 win over Fortuna Dusseldorf on Sunday.
The Germany international pulled up early in the second half after slipping while attempting to make a pass and was replaced by Sven Ulreich.
Neuer missed Bayern's DFB-Pokal quarter-final win against Heidenheim on April 3 but was fit enough to feature in his side's 5-0 thumping of title rival Borussia Dortmund last weekend.
Speaking after the game, though, Kovac says the 33-year-old – who missed almost the entirety of the 2017-18 season with a broken foot – has damaged the same calf that previously troubled him.
"It's the same calf that he had problems with last time," he said. "We'll examine it tomorrow [Monday] and hope, of course, that it's nothing serious."
Bayern's win over Fortuna lifted it back above Borussia Dortmund at the Bundesliga summit by one point with five games remaining.
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