I learned about Martinez while listening to a Baseball America podcast and found this story on their Web site - he was sold to the St. Louis Cardinals in May and while his batting average plummeted back to a more reasonable .278 for the year, he earned a cup of coffee in the big leagues, where he collected 7 hits in 16 at-bats.
Looking through my 'loose archive' of autographed cards, I actually have a Richard Bleier [featured on card #197] autograph card [or two] I must have gotten when he was a Texas Rangers minor leaguer - he spent parts of 9 seasons in the minor leagues as a pretty unremarkable arm [55-57 record, 1035 hits allowed with 507 strikeouts in 925.1 innings pitched].
However, the New York Yankees must have seen something in Bleier and gave him an opportunity to pitch some innings for the big league team - small sample size coming from a 29-year old journeyman noted, but Bleier only walked four hitters in 23 innings, while allowing five earned runs in 20 appearances.