Powerful Waratahs winger Taqele Naiyaravoro is in major doubt for their Super Rugby home clash with the Blues on Saturday.

Naiyaravoro who is the Waratahs joint‑leading try-scorer this season had scans yesterday for a possible hand injury.

Waratahs and Wallabies five‑eighth Bernard Foley says Naiyaravoro would be a big loss for NSW if he is ruled out.

The Waratahs will take on the Blues at 9.45pm Sunday.