O’Loughlin clashes with the 39-year-old Morley on Friday evening, when the Warriors welcome Salford to the DW Stadium.
It could be Morley’s last trip to Wigan, with the veteran weighing up whether or not to retire at the end of the current campaign.
“In terms of the forward battle, ‘Moz’ and Jamie Peacock are the toughest players I’ve ever faced,” O’Loughlin said, according to Wigantoday.net.
“And the fact they’re still going strong, and still have that hunger, speaks volumes.
“It would be massive if this is the last game against us, but people have been thinking that for the last few years, and he’s gone around again.”