The Reds optioned McCambley to Triple-A Louisville on Tuesday.
McCambley appeared in three games, allowing one earned run over three innings with the big-league club before being sent back to Triple-A on Tuesday. The right-hander has spent most of his time this year in Triple-A with both Louisville and Jacksonville (Miami's Triple-A affiliate), registering a 4-1 record, 2.57 ERA, 1.24 WHIP and 60:23 K:BB in 49 innings. With Nick Lodolo (finger) returning from the IL, Cincinnati needed to clear a roster spot.