There are serious injury fears for Waratahs and Wallabies halfback Jake Gordon after he went down without contact against the Force.

There are serious injury fears for Waratahs and Wallabies halfback Jake Gordon after he went down without contact against the Force.

The Wallabies halfback took off from a quick tap late in the first half against the Western Force but didn't get far as his right leg gave way.

Wallabies scrum-half Jake Gordon faces missing the Test season after going down with a suspected Achilles tendon injury in the NSW Waratahs' final Super Rugby game of the year.

Australia scrum-half Jake Gordon had surgery on a torn Achilles Monday, ruling him out of the three Nations Championship Tests next month.