Sale never hit 100 until 2018, and even then, it wasn't all that often. I wonder if throwing so much harder in 2018 was what caused the need for TJS.
Sale was a great pitcher from 204 to 2017. In those years, he averaged about 91-96 with 2017 being more like 94-97. His velocity, so far this year is very close to 2014-2017. One might expect it can gain some more by next season.
See the charts for yourself.. .
https://www.fangraphs.com/players/chris-sale/10603/graphs?pitchgraphs=true&statArr=&legend=1&split=base&time=daily&start=2014&end=2021&rtype=mult>1=15&dStatArray=FA&ymin=&ymax=