Former Parramatta winger Ken Sio has crossed for a hat-trick as Hull KR climbed off the bottom of the Super League table with an emphatic 50-20 win over Catalans Dragons.

Sio crossed early on to restore parity after a try to his former Parramatta teammate Willie Tonga had put the visitors ahead.

Sio’s initial score had sparked the Dragons into action as they ran in three unanswered tries, including four-pointers to former Roosters Michael Oldfield and Remi Casty.

However, after the break Rovers ran riot with Sio grabbing two more more to complete the rout, while former Gold Coast playmaker Albert Kelly also crossed.

Their runaway victory leaves city neighbours Hull FC now bottom of the table, Rovers having climbed to eighth with their second win of the season.

Elsewhere on Sunday, Rangi Chase and Junior Sau were both on the scoresheet as Salford Red Devils held on to claim their second win of the season with a 24-18 victory over Wakefield Wildcats.

On Friday, St Helens maintained their 100 per cent start to the season to open up a two-point lead at the top of the table.

Keiron Cunningham’s side had Lance Hohaia to thank as they fought back from eight points down to beat Widnes Vikings 30-20.

The former Warrior crossed twice, while fellow ex-NRL players Patrick Ah Van and Atelea Vea were also on the scoresheet in the victory.

The Saints are clear on top because Leeds Rhinos, the only other previously unbeaten team, slipped to defeat against Warrington.

The Wolves’ impressive 18-6 victory was built on a superb defensive display while Kevin Penny, Stefan Ratchford and Ryan Atkins all crossed for tries.

Wigan Warriors got back to winning ways, avoiding a third straight Super League defeat with a narrow 13-12 victory over Hull FC.

After losing to Brisbane in extra-time in the World Club Series, they were then beaten by Hull KR and Castleford Tigers in Super League but first-half tries from Joel Tomkins and Dan Sarginson put the Warriors 12-0 up.

Hull’s tries from Fetuli Talanoa and Callum Lancaster sandwiched a Matty Smith drop-goal that settled the match in the Warriors’ favour.

And on Thursday, Huddersfield Giants claimed their second win of the season with an impressive 22-0 win over Castleford Tigers.