Morgan and Dunn are still dealing with ankle injuries.
The team will face China PR on April 6 in Commerce City, Colo., and again four days later in San Diego. The U.S. is 30-8-12 all-time against China PR.
So far in 2014, the Americans are 4-2-1 and No. 1 in the latest FIFA women's world rankings. China is 19th.
Midfielder Lauren Holiday is back on the roster after missing the 2014 Algarve Cup in Portugal because of a family commitment.