Dwight Howard will have back surgery and miss the remainder of the Magic's season as well as this summer's Olympics. Howard, who has missed his team's last six games, is scheduled to have the procedure to repair a herniated disk Friday in Los Angeles.

"It hurts [emotionally]," Howard told ESPN. "That's the first thing -- it hurts. And then with people saying and thinking I'm quitting on my team. This is a real issue. I tried to play through it and it just made my back worse."

According to a report from Yahoo! Sports' Adrian Wojnarowski, Bobcats coach Paul Silas shoved forward Tyrus Thomas after a postgame screaming match Sunday night, sparked by Thomas' friendly chatter with Celtics players.

Silas, the 68-year-old former Celtic, reportedly chastised Thomas for his fraternization with the C's, and Thomas yelled back at Silas. When Thomas stood up, Silas pushed him toward his locker before players stepped in to break up the altercation.

Marlins manager Ozzie Guillen returned Tuesday from a five-game team suspension for his comments praising Cuban dictator Fidel Castro, and he remained apologetic.

"I put myself on probation … me, nobody else," Guillen said. "It's probation about growing up and being better, and be careful to not trust too many people. That was my problem."

There were no demonstrations against Guillen prior to the Marlins' 5-2 victory over the Cubs, which drew a season-low 24,544 to Marlins Park in Miami.

Giants quarterback Eli Manning will host "Saturday Night Live" on May 5 after turning down the offer a few times before. He follows in the footsteps of his brother, Peyton, who hosted the show five years ago.

“I’m looking forward to it,” Eli said Monday, as the Giants gathered for their first offseason workout program. “It’s something that’s been offered a few times and I’ve turned it down. But it seemed like the right time. I felt ready to do it and I’m excited about that opportunity.”

Wesley Korir continued the Kenyan dominance at the Boston Marathon Monday, overcoming temperatures in the high 70s to rally for a victory over Levy Matebo in the 116th running of the Patriots' Day race. Korir, a 29-year-old who left his homeland to attend college in Kentucky at Murray State and then Louisville, finished in a time of 2 hours, 12 minutes, 40 seconds. A Kenyan has won Boston 19 out of the last 22 years, including three straight.

Former Celtics center Dwayne Schintzius died Sunday in Tampa from respiratory failure at the age of 43. According to his father, Schintzius had been being treated for complications from a failed bone marrow transplant after being diagnosed with leukemia in 2009.

"He just went peacefullly," Ken Schintzius said. "He didn't suffer."

The NHL acknowledged Thursday that a linesman missed an offsides call that led to the Flyers' first goal in Wednesday's playoff game vs. the Penguins. The goal, scored after Danny Briere took a pass a couple of feet past the blue line and skated in alone on net, started Philadelphia on a comeback from a 3-0 deficit that ended with the Flyers winning in overtime.

Running back Brandon Jacobs won a Super Bowl with the Giants two months ago, but now that he's signed with the 49ers, he's not showing a lot of respect for his former teammates. During an interview on San Francisco radio station KNBR, Jacobs said the New York offensive line deserved more criticism for his lack of production last season.

Despite the Red Sox' decision to freeze ticket prices following last season's collapse, the team's ticket prices remain the highest in Major League Baseball for the second year in a row, according to information compiled by Team Marketing Report. Sox tickets average $53.38 per non-premium seat, and the cost to take a family of four to Fenway -- including two adults tickets, two children's tickets, two small draft beers, four small soft drinks, four regular-size hot dogs, parking, two game programs and two baseball caps -- is a league-high $336.99.

With residents and some local officials in Miami calling for the Marlins to fire Ozzie Guillen

, the manager announced plans to return to South Florida on Tuesday to apologize in person for comments he made praising Cuban leader Fidel Castro

.

Guillen, whose team is playing a series in Philadelphia but has no game Tuesday, apologized over the weekend after the Time magazine story filtered out. He said he has not been able to sleep and needs to let people in Miami see how contrite he is.