
The former Lincoln star has been ruled out of Sundays Ron Eaglen Final against Rustons with a Ham String injury and he could now also miss next Sundays return to the Bank for the biggest game in the clubs history.
Wilkinson returned to action on Sunday against Millers but declared himself unfit for this weekends mammoth clash with Rustons.
And Coupland has admitted that it will be "difficult" for his inspirational forward to be at 100 per cent for the following weekend.
However, the Welton assistant boss is confident that his treble-chasing squad can cope without GWilkinson, who may not return until the Kelly Read Final against Anglers on May 10th.
"It's always disappointing when Tom isn't in the team but we have won games without him and played well without him at times this season," said Coupland.
"We have quality in the squad and I am sure we can still play nice football, score goals and win games, whoever is in the team."