Mengden (1-7) allowed just two runs on five hits, struck out six and walked two over five innings in a loss to the Mariners on Friday.
The losses continue to pile up for the 23-year-old, who started his MLB career on a high note in June but has struggled since then. He is 0-4 with a 9.39 ERA over his seven starts. He will again be looking for the second win of his career Wednesday versus Kansas City.