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8/20/2014 1:13 A.M. ET

In return to Triple-A, Ranaudo notches 14th win

Red Sox's No. 5 prospect tosses five scoreless innings for Pawtucket

Making his first start since being optioned to Triple-A Pawtucket last week, right-hander Anthony Ranaudo, the Red Sox's No. 5 prospect, threw five scoreless innings Tuesday as Triple-A Pawtucket defeated Lehigh Valley, 7-0.

Ranaudo, ranked No. 78 on MLBPipeline.com's Top 100 Prospects list, had been summoned to make a spot start last Wednesday against the Reds. Though he won that game, his second in as many starts in the big leagues this season, he was optioned the next day.

Back in Triple-A, where he has spent most of the season, Ranaudo struck out four, walked one and scattered seven hits Tuesday against Lehigh Valley. He threw 94 pitches and won his 14th game with Pawtucket this season, tied for the second-most in the Minor Leagues.

Third baseman Garin Cecchini, the Red Sox's No. 4 prospect and No. 58 on the Top 100, led Pawtucket's offense with two hits, two RBIs and a run. He is hitting .253/.325/.359 in 102 games this season.

In 23 starts with Pawtucket, Ranaudo is 14-4 with a 2.46 ERA. He has struck out 108 and walked 51 in 131 2/3 innings. His ranks second in the International League in ERA and third in WHIP (1.18).

Teddy Cahill is a reporter for MLB.com. Follow him on Twitter at @tedcahill. This story was not subject to the approval of Major League Baseball or its clubs.