Rajon Rondo could return soon

Speculation that Celtics point guard Rajon Rondo is almost ready to make his season debut increased after he sent out a cryptic tweet on Monday.

“29,233,280 secs,” Rondo wrote on his Twitter account, implying the 338-day time frame between his surgery to repair a torn ACL last February and Friday’s game against the Lakers.

Pay per head services saw that Celtics head coach Brad Stevens told reporters yesterday that Rondo will undergo a vigorous workout today to test his right knee and is a possibility to play in Friday’s games if he comes out of the session OK.

“We’ve got a day planned, a pretty strenuous day for him, tomorrow,” said Stevens. “And then we’ll go from there.”

“I would think that there’s a chance that he will be back for Friday.”

Rondo tore his ACL on January 25, 2013 in a game at Atlanta and underwent surgery a few weeks later, missing the final 39 games of the regular season as well as the team’s loss to the Knicks in the first round of the playoffs.

The Celtics are 13-26 without Rondo in the lineup this season, the fourth-worst record in the East.