Igawa shows Yankees the way
Igawa (1-0), who went 2-3 with a 6.25 ERA in 14 games during three stints in the Major League last season, fanned seven while throwing 44 of 60 pitches for strikes.
The 28-year-old Scranton/Wilkes-Barre left-hander, who also went 6-5 with a 3.69 ERA for Class A Advanced Tampa and the Yankees last year, struck out the side in the first inning.
Relievers Scott Patterson, Edwar Ramirez and Jose Veras each tossed a scoreless frame to close out the Yankees' first Opening Day triumph since a 7-0 blanking of Rochester on April 8, 1999.
The IronPigs, playing their inaugural game, managed just one hit, a leadoff single to center field in the seventh by Brandon Watson. A year ago, Watson broke the International League record with a 43-game hitting streak.
The Yankees jumped out to a 2-0 lead in the second on Jason Lane's leadoff homer and Nick Green's run-scoring double. Eric Duncan tripled home a run in the fourth and Justin Christian ripped an RBI single in the fifth to cap the scoring.
Lehigh Valley starter A.J. Happ (0-1) allowed three runs on five hits and a walk with four strikeouts over four innings.
Alan Friedman is a contributor to MLB.com.