A second Indianapolis Colts player says he's ALL FOR bringing Jonathan Martin to the team ... telling TMZ Sports, "I think he could help us win, and that's all I care about."
We spoke with a Colts lineman -- who didn't want to be named -- who tells us he stands behind Andrew Luck ... who recently went on record saying he wants to bring his former college teammate to Indy.
"I know J-Mart some," the lineman tells us.
"He's a young guy. A good player. A hard worker. I have no objections."
There's talk that Martin will have a hard time fitting in with another NFL locker room after he accused several Miami Dolphins players, including Richie Incognito, of bullying him around.
But the Colts lineman tells TMZ Sports, "It's just about football to me. The most important thing is that we block on Sunday and win games. The other stuff doesn't matter."
The guy adds, "I could see some guys feeling differently, but I haven't heard anyone say anything."
As for Andrew Luck ... the Colts lineman tells us the QB's support for Martin is very important -- "It does give you confidence that the quarterback of your team supports him."