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.

The absence of The Rock at WrestleMania 41 was certainly a blow to the entire show. Most fans and analysts expected 'The Great One' to appear in the biggest event of the season, but it's likely that his busy schedule in Hollywood prevented him from being in Las Vegas last weekend.