Hull completed their pre-season trial games with an expected defeat of Doncaster at the Keepmoat Stadium but were rocked by another injury scare.

Coach Peter Sharp has already lost nine first-team players to injury during the off-season and saw Great Britain centre Kirk Yeaman leave the field here after just 14 minutes.

Yeaman, who scored the first of Hull's nine tries, hurt himself in a tackle with Darren Woods and spent the rest of the game on the sidelines with his arm in a sling.

It was never going to be too tough a test for Hull against their National League Two opponents, who have lost all three of their friendly games under new coach Ellery Hanley.

But whilst the Great Britain legend is unlikely to be happy with the way his side defended in the opening period, their second-half showing was hugely impressive.

If there was ever to be any doubt, then the contest was over by half-time as Hull raced into a 40-6 lead. Yeaman got the ball rolling in the opening minute, with two scores apiece from Willie Manu and Tom Briscoe, along with efforts from Paul King and Craig Hall. Shaun Leaf contributed for Doncaster with a close-range effort just before the break.

The stand-out for Sharp will no doubt have been the performance of Danny Washbrook who occupied the stand-off position. Sharp has already said that either Washbrook or Shaun Berrigan will start the Super League opener at Warrington there and the former did his chances no harm with a fine display.

He produced a clinical break to create Briscoe's second try and also carved an opening for Hall's, whilst a fine overhead pass from Todd Byrne created Manu's second.

The fact that Hull only posted a further 12 points in the second period was not only down to their experimental approach to the half but to a considerable improvement from the hosts.

No doubt rallied by Hanley at the break, they recovered well from Graeme Horne's touchdown four minutes into the half and went on the dominate the majority of the remainder of it.

Hooker Chris Buttery and stand-off Paul Crook were their main threats and the kicking off Crook in particular kept Hull on toes and at one point forced them to defend six straight sets.

Their efforts were rewarded too when Damian Munroe went in for a well worked try that brought Hanley to his feet in the stand before Hull's assistant coach Andy Last took Hull to the 50 point mark with a neat score.