Segura went 2-for-4 in his Mariners debut in Monday's 3-0 loss to the Astros.
Manning the leadoff spot, Segura was essentially the lone bright spot on a day when Astros starter Dallas Keuchel and two relievers completely stymied a Mariners offense that often looked like it was hitting on all cylinders this spring. Segura was the one player to transfer his success from the exhibition slate to Opening Day, and will be counted on all season to set the table for the array of potent bats in Seattle's lineup.