How irrelevant has she [Clijsters] become? Literally, no one is talking about her and I even forgot she is an active player.
COVID happened? There is literally no buzz about anything right now because everything is so precarious, and it's looking less and less likely that AO will even take place, so I don't see how people not opening random threads about Clijsters next tournament are an indication of how irrelevant she has become. If anything, she was probably one the biggest stories pre-COVID last year, and I'm not even saying this as somebody who's taking her comeback even half seriously.
On the topic of physique, she's pushing 40, has had multiple kids, and her body type was always naturally quite bulky - I genuinely just don't think it's possible to ever get back to a similar shape of her 20s, even if she did put in a ton of work.