The Tampa Bay Rays have told inquiring teams that Chris Archer isn't available in a trade this month, barring an offer that "overwhelms them."

Archer has a disappointing 4.68 ERA, but advanced metrics indicate that he may have been a bit unlucky over the first half of the season. In 117.1 innings, the right-hander has 136 strikeouts.

Just last season the 27-year-old finished fifth in American League Cy Young voting with a 3.23 ERA and 252 strikeouts in 212 innings for the Rays.