Updated: 6:17 p.m.
NEW YORK -- Phillies left-fielder Howie Kendrick was placed on the 10-day disabled list before Tuesday night's game against the New York Mets.
The Phillies called up relief pitcher Mark Leiter Jr. from Triple-A Lehigh Valley to take Kendrick's roster spot.
Leiter's dad, Mark Sr., pitched for the Phillies in 1997 and 1998. Mark Jr. was a 22nd-round draft pick of the Phillies in 2013 out of the New Jersey Institute of Technology.
Kendrick suffered a chest injury while throwing in the outfield in Washington on Saturday. He was able to get through that game -- and, in fact, made two nice catches -- but was too sore to play Sunday.
Though the injury was no worse on Tuesday, Kendrick was still on the shelf. In the new Basic Agreement, a stay on the disabled list is now 10 days, down from 15, so Kendrick could be back in a week as the DL assignment can be backdated three days.
Kendrick described the injury as something like a muscle pull just under his sternum. It is not an oblique injury, he said.
"It's sort of the upper ab, lower rib cage area," he said. "The good news is it's gotten no worse. But I feel it when I take swings off a tee in the cage."
Game action is a lot more intense than tee work, so Kendrick was out of Tuesday night's lineup even before his assignment to the DL was announced. He was replaced in left field by switch-hitting Daniel Nava.
Kendrick said an MRI was planned for the coming days.
Leiter, 25, was off to a good start at Triple A. He had allowed just one run in 5 1/3 innings over two appearances. He walked two and struck out 11.
The Leiters are now the second father-son duo to play for the Phillies, joining the Amaros, Ruben Sr. and Jr.