Murray was brilliant, he just happened to be playing at the same time as the three best players of all time. He also beat Djokovic (Wimbledon) and Federer (Olympics) at their peak in major finals, and was ranked number one in the world for a while.
Maybe not, but would still have been regarded as an all-time great in any other era so it's hardly an insult to Alcaraz to say he's like him.
Dan Evans stages miraculous fightback from 4-0 down in deciding set to beat Russian 23rd seed Khachanov in first round of US Open. Boulter, Dart and Draper won earlier, Raducanu due on in a bit.