Arizona Fall League Player of the Week keeps the hot start going into Week 2...
#SFGiants top prospect Joey Bart blasts off with a mammoth grand slam! (103.7 mph, 423 ft.)
It's the 3rd homer in 6 @MLBazFallLeague games for #MLB's No. 19 overall prospect.
Follow live: https://t.co/63k58n4BCM pic.twitter.com/vhdqRqwqVB— MLB Pipeline (@MLBPipeline) September 30, 2019How outsized is Bart’s standing among the Giants’ contingent this year? Joey has eight hits in the AFL so far. His three system-mates combined also have eight hits!