Sonny Bill Williams issued warning for huge hit on Conrad Smith

Chiefs centre Sonny Bill Williams made his return to Super Rugby this weekend following a month off with a nagging back injury. He got right back into the swing of things, and made this massive crunching tackle on All Blacks teammate Conrad Smith in the first half.  Following a solid shot from Liam Messam, Williams outdid him with a huge tackle on veteran Hurricanes midfielder Conrad Smith. The tough-as-nails All Black legend took the hit well, but asked referee Chris Pollock if it was worth looking at. Pollock said he was comfortable with it. Williams has since been issued a warning by the…