Reed is a good match player and has good mindset, but honestly it would be smarter to send a sacrificial lamb. Rors is en fuego. Weak putting Rory might have been vulnerable, but every part of his game is on today following picking up the level in yesterday's match.
He'd beat anyone unless he wakes up fatigued tomorrow, which doesn't look likely. Unless that missed short putt gets to him. But that's not likely - his big miss with driver didn't affect his long game.