Monday Afternoon Mauro Rosales underwent an MRI to see just how bad the injury to his knee is. He and the Seattle Sounders were told that it is a small tear of his right medial collateral ligament. The Sounders report that the expected recovery is 2-4 weeks, but longer is certainly possible.
Two missed weeks means he's out for games against the Vancouver Whitecaps and New England Revolution in league play. Rosales would also miss two CONCACAF Champions League matches, but he was unlikely to start those anyway. September and October are packed months with mainly two match weeks.
At four weeks missed Seattle's chances at a trophy start to shift. That would put him out against the Chicago Fire in the US Open Cup Final, the final three games of the MLS regular season and the final CCL game. If anything the importance of bypassing the Play-In/Wild Card round gets another bullet point. Getting Rosales back just prior to the MLS Cup Playoffs with a week to train is better than throwing him to the wolves in a one-off game.