If you needed further proof that Tim Tebow is strong as hell ... here's the NY Mets farmhand slinging around 140-pound dumbbells in a quarantine workout Wednesday -- FOR REPS!!!
The former Heisman Trophy winner posted the vid as an inspiration for those looking for some in-home gym ideas during isolation ... but it turned into a MASSIVE flex for the ex-NFL QB.
Check out the vid ... Tebow grabbed some of the biggest dumbbells we've EVER seen -- and pressed them SIX TIMES.
Later, the dude picked up the 115s for a little incline bench .