Never happened. He got up and smiled like a chad after the slam
See? He was slammed to ground but next panel he already sit up, The Undertaker style
[automerge]1731035514[/automerge]
??
Nah never said Shiryu fought prime Garp.
Nobody fought Prime Garp at Hachinosu, Hachinosu Garp is old, retired Garp that already complained about getting weaker even 2 years ago.
Just saying his fists aren't the same as it used to be anymore, but pain tolerance doesn't get weaker over age.
Even if it was Prime Garp that Shiryu stabbed, prime Garp would still weakened and critically injured the same.