Wenger gushed with praise for the South Africa international, stating the midfielder would walk into his Gunners team.
"It's always flattering that one of the best managers in the world says those kind of things about you," said Pienaar.
"What I need to do is to work week in, week out to keep getting better. I am thankful to Wenger but my aim is still the same: keep improving. As simple as that."