Barca should rest him at least 1 month regardless of severity of injury( if it is severe then 2 months). We can win matches without messi, only bring him when we are losing. He needs to be in full fitness for champions league knockout stages and world cup. The only place he has got something to prove is world cup, just get him ready for it. 3 injuries in 1 year is too much for messi. Let ronaldo have more goals than messi this year, who cares we just need him to be his full fitness from next jan-feb. Just hoping that atleti loses one more match then we don't have to play messi week in week out.