BALTIMORE -- Momentum, the old baseball adage goes, is only as good as tomorrow's starter.
And while Orioles righty Chris Tillman did show signs of improvement on Saturday -- pitching his best game in four starts this year -- it wasn't enough to finally secure Baltimore (6-15) a win streak. Instead the O's, fresh off snapping a six-game skid with Friday's win, sputtered at any chance of building momentum with a 4-0 shutout loss to Cleveland. The defeat -- their ninth in 11 games-- highlighted the Orioles' offensive struggles as Tribe righty Mike Clevinger tossed his first career complete game and allowed just two singles.