The Big Ten halted play Tuesday, but it left open the possibility of conducting a spring season.
Tagovailoa transferred from Alabama in May.
The group seeks to diversify the collegiate and professional coaching ranks.
Phipps, who graduated from this university in 2010, has played in the MLL for nine seasons.
Bam's older brother, Anthony, is a redshirt freshman defensive lineman for the Terps.
Revaz will battle for playing time with Chol Marial and Galin Smith.
He previously committed to LSU in December.
Maryland has a number of alumni taking the field as the league returns to action.
Penn announced he would play at LSU.