I going to give this a bump from the WTA thread.
He cant win matches because he is afraid of being injured again. Dominic needs his weapons, big serve, big FH, big BH which is how he breaks down his opponents. When all of this is clicking, Dominic's feet are moving as well as anyone in the top ten. Otherwise, he is just been reduced to be a glorified practice partner. This is why I wanted him to go train with Rafa at the Nadal academy to regain his form. It will come back but it will take time just as Andy told him afterwards their match. Trust his body will build his confidence to want to grind again to win. I agree with what you said earlier, try some lesser tournaments before facing the gladiators in the master series level. IMO