By CHRIS WALKER

Headlock: Fergus Mulchrone scores for Irish despite Cameron Cowell’s tackle
PICTURES: Gareth Lyons

Challenge: Tyson Lewis takes on Thomas Parton

LONDON Irish coach Les Kiss was pleased with his side’s defensive unity as the Exiles staved off a late Doncaster fight-back to secure a bonus-point victory at Castle Park.
Making it seven wins out of seven and continuing their march towards the top of the Championship, Irish were made to work for the spoils against a Knights outfit worthy of a higher league position based on this display.
“We had to dig de...