Junis will be called up from Triple-A Omaha to start Tuesday against the Astros, Jeffrey Flanagan of MLB.com reports.

EDGE Analysis

Junis will assume the rotation spot vacated by Danny Duffy, who was diagnosed with an oblique strain last week and will be sidelined for six-to-eight weeks. The right-hander performed capably in his lone other start this season May 21 against the Twins, conceding two runs on five hits and three walks over 4.2 innings, but he's been much more impressive at Omaha. In seven outings for the Triple-A squad spanning 42.1 innings, Junis has compiled a 57:8 K:BB to go with a 2.34 ERA and 0.97 WHIP. He'll get a tough matchup in his return to the Royals against the AL-leading Astros, but Junis lines up for a more favorable landing spot in his second start of the week Sunday against the Padres at Petco Park.