Luis Mateo an older DSL vet, gets the start and is dominant, going 5 2/3, giving up two hits and one run, striking out nine and walking one. Some notes from BA on Mateo: -- Luis Mateo, rhp, Mets: In the international scouting community, Mateo is far from an unknown. The Giants signed him for $625,000 four years ago, but voided his contract when they found bone chips in his elbow. Then in November 2008, the Padres signed him for $300,000, but that deal fell apart due to MLB's investigation into his background, which eventually revealed that Mateo had falsely shaved two years off his age. After serving a suspension, Mateo finally signed with the Mets last year for $150,000, then went out and dominated the Dominican Summer League. In his U.S. debut on Tuesday for short-season Brooklyn, Mateo struck out nine with one walk, two hits and one run allowed in 5 2/ 3 innings. The 22-year-old Mateo had anything but a typical development path, but his size (6-foot-3, 200 pounds) and stuff are promising, with a 91-94 mph fastball that touches a few ticks higher, along with a power slider and an occasional changeup.