Hamburg SV will not be able to count on Croatian striker Mladen Petric in their battle to avoid the drop after the Croatian picked up a muscle injury in training on Thursday and was ruled out for three to four weeks, the club said on Friday.
Petric is the club's top scorer this season with four league goals in 10 games. Hamburg host Kaiserslautern on Sunday.
Hamburg, the only team have played in the Bundesliga every season since the top league's 1963 introduction, managed to climb out of bottom spot with a draw against VfL Wolfsburg last week with new coach Thorsten Fink making his league debut.
"It was great feeling to come back," Geromel told reporters. "Now I can start increasing the intensity of training."
"I can't determine the exact date of my comeback. That will probably be clearer after a few training sessions."
Schweinsteiger was one of six starting players, including Daniel van Buyten, Franck Ribery and goalkeeper Manuel Neuer, who did not play in the Cup, as coach Jupp Heynckes rested them ahead of the league leaders' Bavarian derby on Saturday.
