Thompson (1-3) allowed seven runs on eight hits and four walks with two strikeouts over five innings in a loss Tuesday to the White Sox.
Thompson has yet to record a quality start in four chances at the major league level, and for the second straight start he served up two home runs. Thompson had just a 6.0 K/9 in the minor leagues and has had similar problems missing bats with the Phillies. He induced just six swinging strikes Tuesday night and owns a brutal 13:13 K:BB over 19.1 innings, just one reason why his ERA is a sky-high 9.78.