The Baltimore Orioles preserved their 100 per cent record after outlasting the Boston Red Sox 9-7 in the MLB on Monday.
Chris Davis starred for the Orioles, who are the only team in the majors to remain unbeaten as they improved to 6-0.
With two out at the top of the ninth inning, Davis powered a three-run homer to lift the Orioles in Boston.
The Houston Astros got the better of defending champions the Kansas City Royals in their American League Divisional Series (ALDS) rematch.
Houston suffered a heartbreaking 9-6 loss in Game Four of the ALDS last season, but the Astros gained some revenge thanks to an 8-2 win in their first game at Minute Maid Park since that defeat.
The St Louis Cardinals crushed the Milwaukee Brewers 10-1, the Miami Marlins routed the New York Mets 10-3, the San Diego Padres saw off the Philadelphia Phillies 4-3 and the Chicago White Sox accounted for the Minnesota Twins 4-1.
Addison Russell's go-ahead three-run homer in the eighth inning helped the Chicago Cubs past the Cincinnati Reds 5-3, the Washington Nationals trumped the Atlanta Braves 6-4, as the Detroit Tigers were beaten 7-4 by the Pittsburgh Pirates.
The Texas Rangers defeated the Seattle Mariners 7-3, while the Los Angeles Angels triumphed 4-1 over the Oakland Athletics.
DAVIS PROVES WORTH
Davis signed a club-record seven-year, $161million deal in the off-season and the infielder went a long way in repaying the faith by hitting the go-ahead three-run homer at the top of the ninth. He smashed Red Sox closer Craig Kimbrel with a 434-foot bomb to deep centre. It gave Davis five RBIs on the day and helped the Orioles get off to the best start in franchise history.
STANTON GOES DEEP IN NEW YORK, TIGERS FAN CATCHES FIVE FOUL BALLS
Marlins slugger Giancarlo Stanton took Mets rookie pitcher Steven Matz deep in the second inning with this two-run home run. Matz exited after allowing the 419-foot shot -- the sixth and seventh runs he surrendered in the inning.
One catch is usually memorable but Tigers fan Bill Dugan somehow came away with five foul balls. He unselfishly gave every ball to a nearby kid.
HISTORY AGAINST TWINS AFTER SLOW START
With a loss to the White Sox, the Twins fell to 0-7 to begin the season. No team has ever started 0-7 and made the play-offs in the same season. The Braves also fell on Monday, joining the Twins as the only remaining winless clubs.
BLUE JAYS HOST YANKEES IN AL BATTLE, DODGERS HEAD HOME
Aaron Sanchez takes the mound for the Toronto Blue Jays looking to build off his last outing, in which the right-hander struck out a career-high eight batters. The New York Yankees will counter with Masahiro Tanaka, who is 2-0 with a 1.69 ERA for his career at the Rogers Centre. The Los Angeles Dodgers face the Arizona Diamondbacks in their home opener.