Daisuke Matsuzaka was a late scratch from his start against the Seibu Lions at MetLife Dome on June 17. Matsuzaka developed cramps in his back during pre-game practice. He remained at the stadium for treatment and left on a taxi during the fifth inning. He is considered day-to-day.
[UPDATE 6/19 @ 12:42am]
Matsuzaka was examined at a hospital in Yokohama on June 18 and diagnosed with a mild sprain in his back. He was taken off the active roster on the same day.