Baltimore, MD (Sports Network) - Chris Davis hit a game-changing grand slam inthe bottom of the eighth inning as the Baltimore Orioles battled back to downthe Minnesota Twins, 9-5, on Friday in the team's home opener at Camden Yards.

Davis, who finished with two hits and five RBI, joined Major League Baseballhistory, becoming just the fourth player to have homered in four straightgames to start the season. Also on that rare list is San Francisco's WillieMays in (1971), St.Louis' Mark McGwire (1998) and Texas' Nelson Cruz (2011).

Adam Jones chipped in with a 3-for-5 effort with two RBI and three runs scoredand Matt Wieters and Nick Markakis each had two hits for the Orioles. MannyMachado and J.J. Hardy added one hit and one RBI in the victory for Baltimore,which has won three of four to start the season.

Starter Jake Arrieta, who made his second straight home opener for the O's,tossed five innings and allowed five runs on seven hits while striking outfive and walking two.

Brian Dozier paced Minnesota with two hits, one run scored and three RBI,while Chris Parmelee and Eduardo Escobar drove in one run apiece in thesetback.

The Twins dropped their season opener versus Detroit, but won the next twogames to clinch their first series versus the Tigers at home since 2010. LiamHendriks gave up four runs on eight hits over 4 2/3 innings.