From Baseball America:
Sisneros is a husky first baseman with a 6-foot-2, 230-pound frame and tons of power with a background as a two-way player. Before his time at East Tennessee State, Sisneros hit and pitched for Lamar (Colo.) JC, but in recent years stands out entirely for his lefthanded power. This spring he was the Southern Conference player of the year after hitting .369/.493/.766 with 23 home runs and 16 doubles and he also had standout zone discipline with a 7.4% strikeout rate and 18% walk rate. Sisneros can homer to all fields and he managed a terrific 89% contact rate and 18% chase rate this spring, though he doesn’t have much track record in wood bat summer leagues and profiles as a first baseman or DH only.