Draft Signings: Marzilli, Randall, Johnson, Encinosa

Let's keep track of the day's non-first and supplemental first round signings here…

• The Diamondbacks have agreed to terms with eighth rounder Evan Marzilli, tweets Nick Piecoro of The Arizona Republic. The South Carolina outfielder's season came to a conclusion on Monday after losing to Arizona in the College World Series finals.
• The Tigers have signed seventh rounder Hudson Randall, according to Jim Callis of Baseball America (on Twitter). The right-hander will obtain a $142K bonus, which is the full slot value for the selection. 
• The Giants have inked sixth rounder Stephen Johnson, tweets Callis. The collegiate right-hander will receive an above slot $180K bonus.
• Seventh rounder E.J. Encinosa has also signed with the Giants and will receive a $144K bonus, reports Callis (on Twitter). The Miami right-hander is noted for his size and hard sinker.
• Yankees second rounder Peter O'Brien, a Miami catcher who signed with the team last week, will obtain a below slot $460K bonus, tweets Callis.
• The Twins have signed eighth rounder Christian Powell, according to Callis (on Twitter). The College of Charleston right-hander, who features a mid-90s sinker, will receive a $140K bonus.