MESA, Ariz. -- Cubs pitcher Jake Arrieta threw off the mound for the first time this spring on Tuesday, and he said his right shoulder passed all the tests.
Arrieta reported to camp with some tightness in his right shoulder, which put his status at the start of the season as questionable. He threw 10 pitches on Tuesday.
"It felt awesome," Arrieta said.
With the addition of free agent Jason Hammel, the Cubs' other options for the fifth spot in the rotation include Chris Rusin and James McDonald. McDonald will make his first Cactus League start on Friday against the Angels.
Even though Arrieta is not ready for games, he said he's feeling on track.
"My endurance is ahead of schedule," Arrieta said.
Carrie Muskat is a reporter for MLB.com. She writes a blog, Muskat Ramblings, and you can follow her on Twitter @CarrieMuskat. This story was not subject to the approval of Major League Baseball or its clubs.