San Francisco Giants outfielder Hunter Pence, playing against his former team this week, said he has regrets about how things ended with the Philadelphia Phillies last summer.

Pence struggled over the first half of the 2012 season, hitting .271 with a .784 OPS before the July trade that sent him from Philadelphia to San Francisco.

In the absence of Ryan Howard and Chase Utley, Pence admitted that he tried to do too much.

"That's 100 percent what I did," Pence said. "And in this game, I say it a lot: you can't try; you've got to trust. And I was trying to make it happen. But there was a great lesson for me in that experience, there was a letting go. there was a lot I had to learn."

Despite winning a World Series with the Giants, Pence said the transition from Philadelphia was a difficult one because he "felt guilty."

"To be honest with you, I felt really guilty," Pence said. "I felt like I did something wrong. Obviously I shouldn’t have looked at it that way, it was the wrong way to look at it. But I was, there was a lot of excitement to be put into this race. But I was heavily invested in bringing the Phillies back, and it felt like… I felt guilty. I felt like it was my fault that it fell apart."