Christian Yelich hit a leadoff home run and Mark Canha added a two-run shot in the first inning as the Milwaukee Brewers beat the Chicago Cubs, 6-2, Monday to extend their season-high winning streak to nine games. 

The Brewers tagged Cubs starter Jameson Taillon for four first-inning runs en route to taking the opener of this key three-game series between National League Central rivals. Milwaukee increased its lead over second-place Chicago to five games. 

Milwaukee starter Wade Miley, who pitched for the Cubs last season, allowed solo home runs to Ian Happ and Patrick Wisdom but gave up only four hits in six innings to improve to 7-3 on the season.

Elvis Peguero, Joel Payamps and Hoby Milner allowed only one hit the rest of the way as the Brewers improved to 5-3 this season against Chicago.

The Brewers are now 25-12 against NL Central teams and have won 11 of their last 15 division games.

The Cubs entered the series having won seven of nine overall to take the lead in the race for the NL's second wild card. Chicago remains a half-game ahead of the Arizona Diamondbacks for that spot. 

Altuve hits for cycle to lead Astros' rout of Red Sox

Jose Altuve recorded the first cycle by a Houston Astros player in 10 years to lead the defending World Series champions to a 13-5 rout of the Boston Red Sox.

After producing a double in the third inning, a single in the fifth and a two-run triple in the sixth, Altuve launched a two-run homer over Fenway Park's Green Monster in the eighth to register the ninth cyle in Astros history and first since Brandon Barnes on July 19, 2013.

Yordan Alvarez also had four RBIs and four hits, including a three-run homer during a big sixth inning in which Houston scored six times to erase a 4-3 deficit. 

Jose Abreu added a solo homer and finished 2 for 4 with two RBIs in Houston's third straight win. The Astros remained a game back of Seattle for first place in the American League West after the Mariners defeated the Oakland Athletics, 7-0, on Monday.

Masataka Yoshida went 3 for 5 with three runs scored for Boston, which had taken a 4-3 lead on Adam Duvall's two-run homer in the fifth. 

The Red Sox have lost two straight and now trail the Astros and Texas Rangers by 5 1/2 games for the AL"s final two wild card spots. 

Rookie Harrison dominant in Giants' win over Reds

Rookie Kyle Harrison struck out 11 over 6 1/3 scoreless innings to earn his first major league victory and lead the San Francisco Giants to a 4-1 win over the Cincinnati Reds in the opener of an important three-game series between NL playoff contenders.

Making just his second career major league start and first at home, Harrison yielded just three hits and two walks to help the Giants gain ground in the NL wild card race. San Francisco now trails Arizona by only a half-game for the league's final playoff spot after the Diamondbacks were dealt a 7-4 loss by the Los Angeles Dodgers on Monday.

Wilmer Flores' RBI double in the first inning staked Harrison to a 1-0 lead and the Giants scored twice more in third, highlighted by Patrick Bailey's run-scoring double.

All three early runs came off Cincinnati starter Andrew Abbott, who lasted just 3 1/3 innings and allowed five hits and three walks despite striking out six. 

The Reds have now lost four of five and remain 1 1/2 games back of Arizona for the final wild card spot.