Barney was not in the lineup Friday as Arismendy Alcantara started at second base. The 28-year-old Barney is batting .224 with a .261 on-base percentage in 70 games this season.
Rosscup is beginning his fourth stint with the Cubs this season. He has made a total of four appearances for the Cubs this year and has not been scored upon in four innings. He is 2-0 at Iowa with a 2.61 ERA in 20 appearances.
Hendricks got word of his demotion one day after making his major league debut at Cincinnati. He gave up four runs in six innings of the Cubs’ eventual 6-4 victory in 12 innings.
Parker, who had a 9.53 ERA in five appearances with the Cubs, has 18 saves and has a 1.44 ERA at Iowa this year, earning Pacific Coast League All-Star honors.