In Johnson's 2000 autobiography "The Rock Says" (Page 147), available via the Internet Archive, he said the Stampeders' training camp began in June 1995, further confirming he was 23 at the time. (The May 31, 1995, date of the Calgary Herald article suggests the training camp may in fact have started slightly earlier.)

Finally, The Rock is explaining what happened at WrestleMania. On Tuesday morning, Dwayne “The Rock” Johnson appeared on “The Pat McAfee Show” to explain his absence at the two-day event and offered some notes on what things he thought could’ve used some tweaking.

Dwayne “The Rock” Johnson has undergone a dramatic transformation for his upcoming role in A24’s “The Smashing Machine” — leaving fans questioning whether they’re even […] ‘That Is Not The Rock’: Fans