britbox
Multiple Major Winner
IF Murray overdid it at the end of 2016 to take the YE1 the question is whether it was worth it. It is a big scalp but he would have gotten the no1 ranking the next year at some point anyways. Health goes a long way even if you are close to such an achievement.
I reckon he'll think it was worth it. No guarantee it could have happened later. It was a small window of opportunity and who knows how he was feeling physically at the time. Plus, he is no spring chicken... as others have mentioned, retirement at this age isn't particularly unusual.