He was massaging that leg during the stage yesterday already. And today he even decided to show the problem to Mas. And Mas chose a hands on approachThis could explain what happened, i.e.
View: https://twitter.com/iks_tweet/status/1512836248687235072
On another note, if the issues does not improve in the next week he should skip FW and LBL (maybe race Fleche, but definitely not LBL). Then recover before the big block of Tour prep in late May.