Air Canada Centre (Toronto Maple Leafs stadium) DOES NOT have dedicated nursing mothers rooms or nursing pods for breastfeeding or breastpumping moms but the suggest an option:

They stated on their website:
"We do not have a designated room available within Air Canada Centre that fans can use to pray or nurse. However, our Fan Services staff are happy to escort individuals looking for a private space to an empty board room within our offices. If you are at one of our events and need to pray or nurse, please visit a Fan Services desk (Gate 1 or Section 301) for assistance."

Note: This is not one of the official dedicated NHL nursing rooms.

Note: Report mom-shaming or harassment while nursing in public or near lactation rooms (breastfeeding rooms), at Moms Pump Here mobile site https://www.momspumphere.com