WWE Spoilers: John Cena Injury UpdateBy Cassidy| April 30, 2012 Wrestling News After suffering a shoulder injury during his Extreme Rules Match against Brock Lesnar at last night’s Extreme Rules, WWE.com has posted an update to Cena’s injury as doctors have stated that Cena is suffering from several muscle strains in his left shoulder, but has suffered no permanent damage to the arm. It is highly possible that Cena’s injury is all part of an angle that may lead to John Cena taking some time off from the WWE. We will surely know more after tonight’s RAW concludes. Do you think John Cena’s injury is legitimate or just part of an angle? Post your comments in the box below.