yes that IS how you pronounce it, a very quick google produced the answer and also since one of the announcers was previously his doubles partner you would assume he would how to pronounce his partner’s name.
one of reasons johns bakhand is so weak aside from the slice insteadof the top is that his wris is down. shoudl bey up liek the tenis tplleyrs amazing hwo pr the bacihand are / o pplayed 75 years ago and was much gbetter as were all the plyersin brighton