You can walk with an MCL/ACL injury until the swelling gets nuts. I'm sure the rest of the NFL will out RG3 on blast for not coming back in, right? I mean, if Cutler could walk the sidelines...... @KillaCamWorrell: Dear Jay Cutler, this is how you play in the playoffs through a knee injury. Signed, RG3. Yes, you play very poorly. RG3 will get a pass because he obviously was hurt before hand, he had a brace on, and he laid down on the field when he got really hurt. Cutler didn't do any of that. People are stupid and think because they didn't see him get hurt he didn't get hurt.