O’Connor finished fourth in his debut Tour and even took home a stage victory for his efforts in the race for the yellow jersey – one ultimately won by defending champion Tadej Pogačar (UAE Team Emirates).
The Australian displayed determination throughout a difficult three weeks and Evans was hopeful his compatriot – given the support – could yet improve even further.
“I know him a little from the past years and to see him – one thing, to be in the break and win a stage, that was great, but to see him be solid in the third week is a great sign for his future and his real capabilities,” Evans said.
“I don’t want to put any pressure on him, but I hope these guys here at AG2R-Citroen La Mondiale can build around him and help him improve on his fourth-place for the future.
“Improve from there and let’s see how far he can go.”
Evans remains the only Australian to ever win La Grande Boucle and was present in Paris when the riders finished on the Champs-Elysees.
The 44-year-old acknowledged the differences present in today’s racing, before praising the likes of Pogačar and Cavendish for their respective accomplishments.
“The racing has changed a lot,” Evans said.
“Pogačar is incredibly strong, (there’s) not much people can do against him.
“I worry about the safety of the peloton in general but overall – seeing Cav come back – I saw a lot of incredible emotions come out of this Tour.”