Henry Slade injury sets Exeter backs a challenge after win over Wasps

• Slade has had operation on suspected broken leg• Wasps’ Dai Young admits his side were too confidentIn the short term, Thomas Waldrom’s reward for scoring three of the six tries that Exeter stuck on Wasps at a slightly stunned Ricoh Arena on Saturday evening was a bar of chocolate. The respect and attention that will be afforded the Chiefs for this performance, however, will last rather longer.That the visitors’ pack, missing the prospective England back-row Dave Ewers and the flanker Don Armand, still proved capable of embarrassing their opponents – four of their tries were scored from roll…