Club captain O’Loughlin will make his 400th appearance for Wigan against Warrington on Thursday night, a game his former boss says will be an emotional occasion at the DW Stadium.
Now 34, the England international’s chance to move to Australia is probably gone but Millward, currently director of rugby at the St George Illawarra Dragons, says he would have been “outstanding” Down Under.
“Sean was pursued by several Australian clubs when I was at Wigan,” Millward told sportinglife.com.
“However, I think he’s so entrenched with his family and the history of Wigan, it was always going to be a massive decision for him to leave.
“He never had to leave either. He’s played during a period when Wigan have been successful. He would have had to give up a lot to go.
“I think he would have been outstanding in the NRL. Not only is he tough defensively but he had the leg speed and the ability with the ball to be used as an extra attacking option all the time.
“He’s got the game for any competition.”
The loose forward's rugby league brain has been a big reason behind his success, according to Millward.
He added: “He’s just a real rugby league player. He’s got a real thought process for the game and a real understanding of what’s needed.
“When he plays, he’s worth a try a game for Wigan.”
Born in Wigan, O’Loughlin has spent his entire career at his hometown club having made his debut back in 2002.
He has won the Super League title three times, captaining the side to victory on each occasion.
O’Loughlin is also a two-time Challenge Cup winner and earlier this season helped Wigan win the World Club Challenge.