BOSTON – CC Sabathia has grown accustomed to the procedure that his balky right knee periodically requires to keep him on the mound, which has typically included draining, one injection of cortisone and another of lubricant.

The left-hander landed on the 10-day injured list on Sunday, heading for yet another round of the familiar treatment. Though Sabathia previously has been able to return quickly from these procedures, manager Aaron Boone said that he does not know when the 39-year-old will be ready to rejoin the rotation.

"I'm just not as sure exactly what it’s going to be right now," Boone said. "Last time we were timing it with the injections he gets, so we knew what it was going to be. This time, I'm not sure. We’ll see how these next few days unfold."

This is Sabathia's sixth trip to the IL for right knee inflammation, including a stint earlier this year from May 23 to June 2.

Sabathia lasted just 4 1/3 innings in Saturday's 9-5 loss to the Red Sox, giving up five runs on nine hits with three strikeouts and no walks, though he said after the game that he would not use his knee as an excuse.

"I'm out there," said Sabathia, who is 5-6 with a 4.78 ERA and 82 strikeouts against 30 walks in 17 starts. "I am expected to get outs."

In a corresponding move, the Yankees recalled infielder/outfielder Tyler Wade from Triple-A Scranton/Wilkes-Barre. Boone said that Wade could fill a variety of roles with DJ LeMahieu (groin strain) and Gio Urshela (sore right ankle) having spent time in the trainer’s office during this series.

Wade, 24, has appeared in 20 games for the Yankees this season, batting .204/.316/.204 (10-for-49) with five RBIs and five stolen bases.

"He's been swinging the bat pretty well for the last couple of months," Boone said. "I think when he first went down, he struggled to get going a little bit. He’s been playing real well for them and obviously with the defensive versatility, we’re hoping he can come up here and impact us."

Medical report

LeMahieu was not in the Yankees' lineup for Sunday's series finale against the Red Sox, though the infielder said that he senses continuing improvement and believes he will be able to play on Tuesday when the Yankees open a two-game Interleague series at home against the D-backs.

"We’re optimistic we can avoid an IL situation with this," Boone said. "We’ll just keep evaluating every 24 hours, but we feel good about where he’s at today."

Comeback trail

• Brett Gardner (left knee inflammation) could be activated on Friday against the Red Sox, the first day that he would be eligible, Boone said.

• Boone clarified on Sunday that Luis Severino is ahead of Dellin Betances in their respective returns from right lat strains, as Severino is closer to throwing from the mound because he went through a longer strengthening period. That could happen within the next two weeks.

• Jordan Montgomery (Tommy John surgery) is "doing well, but I wouldn’t say he’s close to being an option right now," according to Boone. Montgomery was shut down with rotator cuff inflammation in June, but he has returned to throwing side sessions.

• Gary Sanchez (left groin strain) is said to be improving, with various strength tests producing encouraging results, but there is no firm timetable for the catcher's return. Boone has said that sometime in August is possible, though it could also be September.

This date in Yankees history

July 28, 2015: The Yankees allowed five runs in the first inning, then scored 21 unanswered runs in a 21-5 win over the Rangers in Arlington, including 11 in the second inning. It marked the first time that a Major League team has led by at least five runs after its first turn at bat, then trailed by at least five runs going to its second turn at bat.