WWF SmackDown! Just Bring It (2001) did not have official online features when it was released for the PlayStation 2, you can play it online today using third-party emulation tools that simulate a local multiplayer experience over the internet. Ways to Play Online
RomStation: This all-in-one emulation platform has built-in lobby systems that simplify the connection process for classic titles like Just Bring It. wwf smackdown just bring it play online
Despite being over 20 years old, Just Bring It retains a cult following for several reasons: WWF SmackDown
If you want native online wrestling on PS2: wwf smackdown just bring it play online
Official Online Support: None (Native to the offline era of early PS2).
If you want to play online: