Report: Tom Brady seen throwing to Rob Gronkowski during private workout at UCLA on Monday

Apparently the two Patriot greats held a private throwing session on Monday.

UCLA has been Tom Brady's practice facility on the West Coast during the NFL offseason for years. He was spotted there on Monday, where he was reportedly seen throwing passes to former Patriots tight end Rob Gronkowski, according to Andrew Callahan of MassLive. 

Source: Tom Brady threw to Rob Gronkowski during a private workout today at UCLA's campus https://t.co/BXRrlF52ty

— Andrew Callahan (@_AndrewCallahan) July 8, 2019

What exactly does this mean?

Was this just a little reunion? Did Brady just need someone to throw to, and Gronkowksi just so happened to be in the area?

Callahan also reported that Brady's trainer, Alex Guerrero, was present at the workout at UCLA. 

Did Guerrero maybe want to guage how Gronkowski looked? Keep in mind the tight end was also on the TB12 method in his last few seasons with the Patriots, so Guerrero and Gronkowski likely have spent plenty of times together in the past.