Bigge will serve as the Rays' opening pitcher for Sunday's game in Houston, Marc Topkin of the Tampa Bay Times reports.
After being acquired from the Cubs last Sunday as part of the three-player deal that sent Isaac Paredes to Chicago, Bigge was added to the Rays' 26-man active roster two days later. He's already turned in a pair of scoreless frames for Tampa Bay and has now given up just one earned run while striking out seven over his first 5.1 big-league innings, and he was dominant at the Triple-A level before that, accruing an 0.68 ERA, 0.69 WHIP and 20:6 K:BB in 13.1 innings for the Cubs' affiliate in Iowa. Sunday will mark Bigge's first career start, but he's unlikely to cover more than inning or two before turning to game over to lefty Tyler Alexander, who is expected to operate as a bulk reliever.