Photos obtained by SportsGossip.com (which you can see HERE) show Kendall - one of the most famous supermodels in the world - attempting to go incognito.
If Ben was playing in Kenny's home town of LA we would say there's probably nothing going on, but for Kendall to fly all the way to Philadelphia - where literally no model business ever happens - seems like she was there for the specific reason to cheer on the Aussie basketballer.
Kendall and Ben first began dating back in May 2018 but eventually called it quits as of September 2018.
The pair then reconciled in November of 2018, only to split up once again in May this year.
A source told Us Weekly at the time that the source of the split was nothing dramatic, it was just that things had "cooled down".
"They were getting serious for a bit, but were starting to cool off recently. They’re so busy doing their own things and realize they’re young and want to have fun."