No word on exactly what the substance was that Martinez tested positive for. He was released by the Red Sox last week after signing a minor league deal earlier in the month. Still just 30-years-old, it's possible that Martinez could come back from this next season, but it would have to once again be on a minor league deal from a club willing to take a chance on the former two-time National League All-Star.

Martinez signed a minor league contract with the Red Sox in early May, about a week after getting cut loose by the Giants, and went on to allow 10 earned runs over 4 1/3 innings (two starts) with Triple-A Worcester. The 30-year-old former two-time NL All-Star will aim to latch on with yet another organization.

Martinez signed a minor league deal with the Giants in March but did not pitch in a game before he was released on April 28. The 30-year-old right-hander showed potential during his nine years with the Cardinals but was released after a torn thumb ligament ended his season last year. 

Not a ton of updates regarding Martínez's status this spring and it appears that he won't be a potential option for the Giants' starting rotation (or bullpen) right away. The 30-year-old righty, who is coming off surgery to repair a torn ligament in his right thumb, inked a minor league deal back in March and doesn't appear close to making an impact yet.