Premiership round-up: Ashley Johnson inspires Wasps to win over London Irish

• Hooker Johnson stars as Wasps score six tries in 38-12 victory in Coventry• Newcastle 15-21 Sale Sharks; Bath 38-27 LeicesterWasps did not get out of second gear but still cruised to a comfortable 38-12 win over relegation-bound London Irish. Led by an outstanding display from their hooker Ashley Johnson, Dai Young’s team scored six tries thanks to Thomas Young, Charles Piutau, Christian Wade, Dan Robson, Josh Bassett and Johnson at the Ricoh Arena. Wasps now head to Exeter for a semi-final. Irish will play in the Championship next season unless Bedford Blues win that competition.Wasps spark…