Beckett looked magnificent early in his start against the Tigers, retiring the first eight batters he faced.
But in the third inning, his back started to lock up on him and he had to exit with a back spasm.
As Beckett -- a 2007 postseason hero- - walked off the Fenway Park mound with his injury, he was booed by his home fans.
A little harsh, no?
"It is what it is," Beckett said.
"None whatsoever," Beckett said.
"I was talking with the guys, so I didn't take notice of the boos. I don't think he deserved a boo at all," said manager Bobby Valentine. "Those who were booing will probably take it back today when they figure out what the situation was, but I was talking to the players about the conditions. [Justin] Verlander at the time was on the mound. We were all talking at the time."
After having some time to decompress, Beckett admitted that hearing his name in so many trade rumors the last few days became a little stressful. He has been with the Red Sox since 2006.
"I mean, I definitely had three hours to calm my mind," Beckett said. "I've never been through it. It was definitely something different for me."
Beckett held 10-5 rights, which means he had the power to veto any trade. He said that general manager Ben Cherington never approached him about any deal.
"There were a lot of guys in here that's name was attached that some people didn't think would go anywhere," Beckett said. "I think a lot of times people try to throw as many things up against the wall as they can and then one sticks and they look like a genius."
As for Beckett's back, he hoped it was just an isolated case of spasms and that he can return quickly, perhaps even in time for his next start.
"I don't know, we'll just see how things are," Beckett said. "I'm stiff right now, that's about it."
In 2010, Beckett made only 21 starts due to back problems. The issue started that year when he pitched on a wet mound in Yankee Stadium in May.
"New York was kind of like one of those deals where I felt it on one pitch," Beckett said. "This wasn't that severe. Like I said, it kept getting worse and I couldn't throw a strike."
Beckett exited the game after walking Miguel Cabrera with the bases loaded to force in a run.
For the season, he is 5-9 with a 4.54 ERA.