Ronan O'Gara has extended his contract as assistant coach with the Canterbury Crusaders until after the 2019 Super Rugby season, the club have confirmed.

O'Gara joined the Crusaders ahead of the 2018 season on a one-year contract after leaving his role as an assistant at French club Racing 92.

"I'm delighted to be extending my contract for another season," the former Munster and Ireland flyhalf said.

"I have always been an admirer of rugby in New Zealand and to get the opportunity to work with a club like the Crusaders is a fantastic experience."

Last year's champions sit comfortably at the top of the Super Rugby table on 54 points and should seal home advantage throughout the play-offs when the final three weeks of the regular season resume after the international break.

They face a French Barbarians side in Christchurch on Friday.