THE Dons produced one of their best performances in recent years as they overcame a series of injury setbacks to continue their impressive start to the season with their fifth win in a row.
Workington were a big, powerful side and the best opposition they had faced so far.
But they dealt with them by raising the intensity of their game - and their excellent defence was highlighted by some aggressive tackling.
Tony Miller’s men had to show plenty of character as players went down like ninepins with a variety of injuries in the first half.
The worst of these was to substitute Aaron Dobek, playing his first game since a shoulder operation in the summer.
Dobek came on in the first half but only lasted 15 minutes before he was helped from the field with a suspected broken ankle.
Goalkicker Scott Spaven had to retire early in the second half with a shoulder problem and in-form full back Mick Butterfield came off at the start of the game after taking a bad knock.
Doncaster were continually forced to reshuffle and used five different full backs during the match.
But they refused to be knocked out of their stride as they set about their task with bags of enthusiasm and determination.
Shaun Leaf gave them the lead with a try in the 13th minute and Kyle Kesik touched down on the half hour mark after sidestepping a couple of opponents in dazzling style.
Craig Fawcett added another just before the interval, with Spaven kicking two goals, to give the Dons a 16-0 half time lead they richly deserved.
Workington hit back in the second half with a try from John Patrick as the Dons injuries began to take their toll.
But Miller’s men bounced back with a fine try from Leaf, following a slick pass from Jack Ely, and then Kesik superbly set up Ryan Steen to put the issue beyond doubt.
Town responded with tries from Neil Frazer and Jack Pedley but the Dons were worthy winners as they maintained their place as joint leaders of the early table.