Marcellus Wiley says the Redskins did the right thing in claiming Reuben Foster ... telling TMZ Sports the linebacker is "innocent until proven guilty" and deserves a second chance.
There aren't many that would agree with the ex-NFL superstar ... 'cause Foster has now been accused of domestic violence multiple times in the last year -- including being arrested 3 days before the 'Skins picked him up.
But, Wiley explains, "You gotta allow the guy to have his opportunity. He's not on the field right now. They claimed him off waivers and they wanted to make sure that, 'We do the proper investigation and figure out who he is and what happened.