49ers tight end Vernon Davis has defended his criticism of teammate Michael Crabtree. "It was a matter of being a team captain. All I was doing was taking care of my responsibilities and doing my job," Davis said. "I was just expressing the way I felt at the moment. I just pretty much said whatever was on my mind at the time. Just pretty much giving him a check, getting his head leveled and just getting on him about some things he did in the past." Davis said his issue with Crabtree was football related but not about the second-year wide receiver not playing during the exhibition schedule. "I hope he got the message. I think he did, I strongly believe, but if anything I see that I feel is wrong or that needs to be addressed, then I'm going to say something," Davis said. "I don't really have any frustrations with Michael. He just did some things during that time that I didn't like. That's all. ... It was basically taking ownership."