Weston McKennie is the latest player to pull out of the U.S. squad that will face Colombia and Peru in friendlies over the next few days.
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United States international Weston McKennie scored his first Bundesliga goal in Schalke's win on Saturday before leaving with an apparent injury.
Having joined Schalke on a free transfer from Hoffenheim in the summer, Mark Uth, 27, has not scored in nine matches.
Weston McKennie, 20, headed home from a corner to secure victory over Lokomotiv Moscow with his first-ever senior goal for Schalke.
United States international Weston McKennie scored from a header two minutes from time to give Schalke a 1-0 win at Lokomotiv Moscow.
Weston McKennie, 20, had to be helped off the pitch after he received an unintentional kick in the leg from James Rodriguez.
Bundesliga leaders Bayern Munich eased past Schalke 2-0 on Saturday to make it four wins out of four league matches for the champions.
Ghana's Abdul Rahman Baba is hoping his injury nightmare is finally behind him, and that he can repay Schalke for the faith they've shown in him.
Schalke 04 marked their return to the Champions League after a three-year absence with a 1-1 draw at home to Porto in their Group D opener Tuesday.
United States midfielder Weston McKennie has a bruised left knee, not a sprain as was first announced.
United States midfielder Weston McKennie left Tuesday's friendly against Mexico before halftime with what U.S. Soccer says is a left knee sprain.
Juventus will face Man United in the Champions League group stage this season, giving Cristiano Ronaldo a chance to play against his former team.
Bayern Munich midfielder Sebastian Rudy has been sold to Schalke after making 34 appearances in 2017-18, his only season at the club.
John Brooks scored and Daniel Ginczek snatched a stoppage-time winner to help Wolfsburg stun Schalke 2-1 on Saturday.
Schalke's Christian Heidel has grown annoyed by English agents offering their players to the club with the German transfer window still open.
Hamza Mendyl signed for Schalke from Lille last week, but had been linked with a late move to the Emirates.
Mendyl, a 20-year-old left-back, was part of Morocco's World Cup squad but did not feature in their three group matches in Russia.
Schalke sporting director Christian Heidel said he is not in the market for Premier League players amid links to a loan for Tottenham's Danny Rose.
Thilo Kehrer, 21, arrives at Parc des Princes for a fee in the region of €37 million after moving into the final 12 months of his previous deal.
Reports in England said Schalke are prepared to offer Loftus-Cheek regular football, after the closure of the Premier League transfer window.
Danny Rose could leave the club in search of regular football after losing his place in Mauricio Pochettino's side to Ben Davies.
Crystal Palace signed German midfielder Max Meyer on a three-year deal after his contract at Schalke expired, the Premier League club announced.
The Morocco international has been sentenced to probation after killing a pedestrian in a car accident in Marrakech in June.
Benedikt Howedes ended a long spell with his boyhood club Schalke when he joined Lokomotiv Moscow on Tuesday.