Brown (knee) has been ruled out for Sunday's game against the Lions in Munich, Evan Lazar of the Patriots' official site reports.
Brown tweaked his knee against the Packers in Week 9, and the injury is severe enough for him to not travel with the team to Munich. In his absence, Walter Rouse is expected to serve as the Patriots' starter at left guard. Since the Patriots are on a bye for Week 11, Brown's next chance to suit up is Week 12 against the Chargers on Sunday, Nov. 29.