Cano day to day, Johnson likely to DL

BOSTON -- The Sore Core has company.

The Yankees' growing list of injuries has added Robinson Cano and Nick Johnson. Yankees manager Joe Girardi thinks Cano is likely going to miss at least Saturday's game with a bruised left knee, while Johnson is likely headed to the disabled list because of an injured right wrist.

During the sixth inning of the Yankees' 10-3 victory over the Red Sox on Friday night, Cano hurt the knee when Josh Beckett hit him with a splitter

"I would be surprised if Robby can play on [Saturday]," Girardi said.

Meanwhile, a right wrist injury forced Johnson to exit and it will send him to the disabled list for the 10th time in his career, according to Girardi. Johnson, who has missed nearly two full seasons with injuries to the same wrist, will be in New York on Saturday for an MRI.

"It is not fun to have to go through it," Johnson said. "I'll see what the doc says and go from there."

With the injuries, Girardi expects to call up an infielder prior to Saturday's game.

While the Yankees keep winning, they seem to have an injury or two per day; most notably to the group commonly referred to as the "Core Four."

On Friday, Girardi officially announced that Andy Pettitte's next start would be skipped due to his elbow injury. Jorge Posada did not start his third consecutive game because of a strained calf, but could return on Saturday. Mariano Rivera, after missing a week due to stiffness, was available to pitch Friday, according to Girardi, but was not needed in the blowout.

Derek Jeter -- the only Core Four veteran who has not been hurt since the foursome appeared on the cover of Sports Illustrated -- took a fastball to his back, but stayed in the game.

In the sixth, Beckett nailed Cano with a 92 mph splitter that made a loud noise as it smashed into the inside of Cano's left knee.

After going to the ground and grimacing for a few minutes, Cano told Girardi that he could stay in the game. Girardi allowed him to, but two pitches into Nick Swisher's ensuing at-bat Cano indicated he needed to leave.

"I think I'll be fine," said Cano, who is hitting .355 with nine homers and 21 RBIs.

At this point, no medical tests are scheduled on the knee.

Cano's only been on the DL one time in his career. In 2006, he missed six weeks with a strained left hamstring.

In the fourth, Johnson left the game with what the Yankees announced as a sore right wrist. Johnson said he felt the injury in his first at-bat of the game. He stayed for a second at-bat.

Johnson's pages in the media guide look as if they were put together by WebMD. Johnson's been placed on the DL nine times in the previous nine years.

Wrist injuries are nothing new to Johnson. In fact, his inaugural injury of his major league career -- which forced him to miss the entire 2000 Yankees season -- was a sprained right wrist.

Two years ago, with the Nationals, a right wrist injury limited Johnson to just 38 games. That season, he had a tendon sheath in the wrist.

Johnson has also battled back injuries this season.

Andrew Marchand covers baseball for ESPNNewYork.com. You can follow him on Twitter.

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