Cust, 33, signed a non-guaranteed Major League deal worth $600K in January. The one-year contract had also included a club option for 2013. Cust posted a .213/.344/.329 line with three home runs in 270 plate appearances for the Mariners in 2011, when he earned $2.5MM. However, the TWC Sports client averaged 28 homers and 103 walks with the A's from 2007-09.
Duke, 28, posted a 4.93 ERA with 3.8 K/9, 2.2 BB/9 and a 49.6% ground ball rate in 76 2/3 innings last year. The 2009 All-Star owns a 4.56 ERA with 4.6 K/9, 2.4 BB/9 and a 49.0% ground ball rate in seven seasons with Arizona and Pittsburgh. SFX represents the Clifton, Texas native.