Source: Sox calling up Bogaerts

Losers of seven of their past 10 and embarking on a critical West Coast road trip, the Boston Red Sox on Tuesday called up top prospect Xander Bogaerts, according to a team source.

Between Double-A Portland and Triple-A Pawtucket this season, Bogaerts hit .297 with 15 homers, 67 RBIs and an .865 OPS in 116 games.

It's unclear how Bogaerts, who has been splitting time in Pawtucket between third base and shortstop, will be used. He is likely to see action against left-handed pitchers, against whom the Red Sox have struggled this season. They're hitting a combined .252 versus southpaws, compared to .285 against right-handers. With the PawSox, Bogaerts hit .298 and had a .926 OPS against lefties.

Shortstop Stephen Drew is hitting .195 in 113 at-bats against lefties this season.

"I know I'm just one call away," Bogaerts told ESPNBoston.com last week. "You never know when that opportunity is yours, but I just try to come to the field and try to play good. That's who I am, and I don't take anything for granted. I grind out all my at-bats and try to hit the ball good and hopefully good results happen. I'm a fighting spirit, and that's one thing I have a lot. I just come to the field, play hard and try to win."

The Red Sox embarked Monday morning on a six-game West Coast trip against the San Francisco Giants and the Los Angeles Dodgers, the hottest team in baseball.

In addition to Bogaerts, the Red Sox also activated catcher David Ross, who had been on the 60-day disabled list after a concussion in late June.

To make room for both of them, the Red Sox optioned infielder Brock Holt and catcher Ryan Lavarnway to Pawtucket.

To clear space on the 40-man roster for Bogaerts and Ross, the team is expected to put pitchers Andrew Bailey and Clay Buchholz on the 60-day DL.

WEEI.com was the first to report the news.