With Young hurt, Tena DHs and Crews plays CF. Millas catches vs the RHP.
Martinez has pitched a big number of good innings, piling up 1.8 fWAR. Relies on contact rather than Ks. Limits BB and HRs.
Alvarez has also been effective, maybe more effective with an opener or otherwise in relief. He's gone 4 - 4.2 innings in his 3 June appearances as a starter, with 2 good starts surrounding a less effective start where he piled up 5 of his 12 walks this season. Otherwise, he's had a very good K/BB ratio (24.1 IP, 7 BB, 27 K).