When the Toronto Raptors are struggling, their formula for success usually gets simplified - coach Sam Mitchell makes sure point guard T.J. Ford gets the ball to Chris Bosh in the post.

But Mitchell is away from the team on a personal matter, Bosh is banged up and oft-injured Ford's status is uncertain as the Raptors on Wednesday night will try to snap a three-game home losing streak when they face the New Jersey Nets.

Toronto (27-23) fell 93-88 at home to San Antonio on Monday, giving the Raptors their second three-game skid at Air Canada Centre this season. The Raptors haven't lost four straight at home since March 29-April 9, 2006, when they dropped five in a row.

Circumstances involving three of Toronto's most important pieces could make it tough to head into the All-Star break with any positive momentum. Mitchell missed Monday's game because he has taken a leave of absence following the death of his father-in-law.

A team spokesman said Mitchell will not rejoin the Raptors until after the All-Star break. Assistant coach Mike Evans took charge Monday, and fellow assistant Jay Triano will serve as head coach for this game.

Triano hopes to have Bosh in the middle. Toronto's most dominant player limped off midway through the first quarter Monday after injuring his right knee in a collision with Spurs guard Jacque Vaughn. Bosh returned three minutes later wearing a wrap on his knee, and said he expects to play Wednesday.

"I'm sure it's going to be a little sore," said Bosh, averaging 22.4 points and 9.2 rebounds per game. "I bumped it pretty good."

Ford, meanwhile, played eight minutes in the first half against San Antonio, but was kept on the bench in the second because of a sore right wrist.

Ford returned Feb. 4 after missing 24 games due to neck and arm pain, a result of a frightening fall on Dec. 11 in a game versus Atlanta. He is averaging 12.1 points and 6.6 assists this season.

If Ford can't play, Jose Calderon will get his 37th start. With Ford missing a good portion of the season, Calderon has taken advantage of the opportunity. The third-year guard is averaging a career-high 12.7 points and 8.8 assists per game. He scored a career-high 27 versus the Spurs.

Toronto also will have to contend with the Nets' Jason Kidd, who continues to be the focus of trade rumors. Kidd had just nine points, but contributed 10 rebounds and nine assists in the Nets' 92-88 win over Minnesota on Tuesday night.

Kidd was held to two points on 1-of-5 shooting in a 106-69 loss to Toronto on Nov. 2. It was the first meeting between the teams since the Nets (23-29) ousted the Raptors in the opening round of last year's playoffs.

New Jersey enters this matchup having won three straight for the first time since a five-game run from Dec. 28-Jan. 5. The Nets have held their opponents to 86.7 points per game and 37.9 percent shooting from the field during their winning streak.