^ I guess every young generation of tennis players have big respect to the big 3 or big 4 that's why most of the time they can't beat them because of that mentality, (I'm not saying it's bad). But Murray's game has deteriorated so much after coming back from the injury that we all know that it's just a matter of time before he retires for good. Of course, it's still not an easy game for Tsitsipas and he shouldn't underestimate Murray in their match.
I dont like hearing it the Big 4 ,because Murray isnt even close with all of the achivements to the Big 3. Yes he won some big titles while they were dominating but he didnt keep winning titles every year like them. Now Murray just plays big tournament with wild cards and always get knockout in the first or second round.
I would say it a little differently.
In fact, it is a great achievement and a huge success to win several GS tournaments at a time when the three greatest tennis players in history played together.
Murray and Wawrinka did it and it says a lot about their quality and mental strength.
Had they played at a different time, they would probably have won a lot more GS tournaments.
Murray unfortunately had a lot of injury problems and therefore didn't achieve what he could in tennis given his talent and quality of play.