Cardiff Blues flanker Josh Navidi and Scarlets centre Adam Warren have both been called up to the Wales squad for their summer tour of Japan.
Navidi, who has previously captained his country at youth level, was part of the Six Nations squad earlier this year, while Warren made his international debut last summer.
The duo have replaced Scarlets' Aaron Shingler and Ospreys' Ashley Beck, who have been ruled out with foot and groin injuries respectively.
Warren has already joined up with the party.