Cayless and Tahu ruled out for Eels

Parramatta have been dealt a double blow ahead of Saturday's NRL clash against Canberra with both captain Nathan Cayless and star centre Timana Tahu ruled out through injury.

The international duo failed fitness tests with Cayless still hampered by a hamstring concern and Tahu to miss the game with an elbow injury.

Winger Joel Reddy, who has performed strongly in the opening three rounds with Eric Grothe sidelined, will come into the starting side for Tahu, with Grothe, playing his first game of the season after overcoming an ankle injury, likely shifting to centre.

Either Fuifui Moimoi or Richard Fa'aoso are expected to come into the 17 for New Zealand prop Cayless.

Josh Cordoba will likely start in the front row alongside Aaron Cannings, who was cleared to play after overcoming a knee injury.

The Raiders have reported no injury concerns ahead of the match at Parramatta Stadium.