From a MLB.COM's list of fastest prospects article:
Yankees: Isaiah Pasteur, OF Pasteur has been clocked as fast as 6.2 seconds in the 60-yard dash and regularly gets from the right side of the plate to first base in less than four seconds. A 13th-round pick out of George Washington University in 2018 -- when he was the Atlantic 10 Conference Player of the Year
Well, he was drafted in 2018, 2019 was his first full season in the minors and then 2020 got washed out for all minor league players. No time limit, just has to prove he can hit, because its clear he can fly
