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10/11/11 1:25 AM ET

Middlebrooks, Scorpions sting Solar Sox

Red Sox prospect continues scorching start to Arizona Fall League

The power that Will Middlebrooks displayed during the season has carried over to the desert.

The Red Sox's No. 4 prospect drove in two key runs game as Scottsdale defeated Mesa, 4-3, on Monday.

After the Solar Sox jumped out to an early 3-0 lead, Middlebrooks smacked a two-run double with one out in the fourth inning. After a passed ball advanced him to third, the 23-year-old third baseman scored the tying run on a groundout by MLB.com's No. 2 prospect Bryce Harper.

Middlebrooks handled the jump to Double-A in 2011 with relative ease, batting .302 with 18 homers and 80 RBIs for Portland, to earn a promotion to Triple-A Pawtucket. The former fifth-rounder finished with a .285 average and a career-high 23 homers and 94 RBIs.

In three games with the Scorpions, Middlebrooks has hit .417 with three extra-base hits and four RBIs.

Brandon Crawford (Giants) was 3-for-4 with a triple and scored the go-ahead run on Joe Panik's RBI fielder's choice. Harper (Nationals) his first hit and RBI of the fledgling season. He reached base twice and stole a pair of bases.

After starter Brock Huntzinger (Red Sox) allowed three runs over three innings, the Scorpions' bullpen surrendered just two hits over the final six frames. Giants farmhand Stephen Harrold was credited with the win, fanning one over two hitless innings.

Pirates prospect Robbie Grossman was 2-for-5 with an RBI and DJ LeMahieu (Cubs) doubled and scored a run for the Solar Sox.

Brandon Kloess (White Sox) was tagged with his first loss, allowing a run on one hit and walking two in an inning of relief.

Robert Emrich is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.