Turning to the Reds’ side of the deal, Mella ranks first on MLB.com’s midseason list of Giants top prospects and second on Baseball America’s version of the same list. ESPN’s Keith Law tweets that he considered Mella the best arm in San Francisco’s system as well. MLB.com’s Jim Callis and Jonathan Mayo write that Mella has the best combo of stuff and pitchability of any arm in San Francisco’s system, making him a candidate to rise quickly through the minors. He’s 93-95 mph with his fastball regularly, touching 97 when needed, per their report, and has the potential for three average-or-better pitches. BA notes that a scout has likened his sinking fastball to a bowling ball, and that movement helps him limit homers. Still, some see the bullpen in Mella’s future, BA adds.