Spencer Jones’ 6-foot-7, 240-pound frame isn’t just for show. It packs a ton of thump. The Yankees’ No. 6 prospect demonstrated as much on Sunday, scorching a pair of towering homers -- including his second grand slam of the season -- in Triple-A Scranton/Wilkes-Barre’s 7-1 victory over Buffalo at PNC The Yankees’ No. 6 prospect demonstrated as much on Sunday, scorching a pair of towering homers -- including his second grand slam of the season -- in Triple-A Scranton/Wilkes-Barre’s 7-1 victory over Buffalo at PNC Field. The performance marked Jone... [2180 chars]