Joyce would demolish Tua. He was slow footed and fast most of the time. He's about a foot shorter than Joyce
I'm a huge Tua fan. Joyce UD. Rationale: Tua lost to every 6'3+ opponent who could who could keep him at arms length. Joyce has the size, skills, tank and chin to take this. I'd give the edge to Tua if there was a chance that Joyce would run out of steam but unfortunately for Tua, Joyce picks his spots well to conserve energy and has 12 round stamina.
An in shape Tua... That beat Ruiz.... Would demolish Joyce..... Joyce would be to slow to keep him out.... Even with reach.... Joyce an old man already
Joe Joyce and David Tua Both have a common opponent Alexander Ustinov Tua lost to Ustinov via UD Joyce KOed Ustinov in 3rd Round
That doesn't prove anything except that Ustinov beat a washed up Tua in his retirement fight and that Joyce beat Ustinov 6 years after he beat Tua. Based on your logic Kevin McBride or Danny Williams both beat a prime Mike Tyson
Tua was a beast for his dimensions, but he never beat SHWs, Joyce is stronger, much longer and has better boxing skills. If you werent strong enough or skillful enough, Tua most of the time would finish you.