The Diamondbacks on Saturday executed their second trade in 24 hours when they sent infielder Cliff Pennington to the Toronto Blue Jays for Class-A shortstop Dawel Lugo.

The 31-year-old Pennington hit .237 with one home run and 10 RBI in 72 games for Arizona. The switch-hitter started at shortstop, second base, third base and left field this year. Pennington is a career .248 hitter with 80 stolen bases in eight seasons with Oakland and the Diamondbacks.

The 20-year-old Lugo hit a combined .257 with 44 RBIs in two low levels of the minors this year. Lugo was rated the Blue Jays' No. 12 prospect by MLB.com. In 98 combined games this season at Low-A Lansing and High-A Advanced Dunedin, he hit .257 with 15 doubles, three triples, four homers and 44 RBI.

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The D-backs purchased the contract of infielder Jamie Romack from Triple-A Reno to take Pennigton's spot on the 25-man roster.

Romak, 29, hit .289 with 33 doubles, 22 home runs and 87 RBI in 107 games for Reno. He ranks among all Minor Leaguers in RBI (2nd) and home runs (8th), and ranks among the Pacific Coast League leaders in extra-base hits (1st, 58), runs scored (2nd, 71), total bases (2nd, 219), doubles (2nd, 33), slugging percentage (4th, .554) and OPS (5th, 928). His 26 RBI in July were the most in a single month in Aces' history.