Matos was taken to a local hospital by helicopter after sustaining an unspecified injury during Wednesday's practice, Niles Garrison of The Palm Beach Post reports.
#1 TE
Darren Waller: Being eased back by Dolphins
Jul 23rd
Coach Mike McDaniel noted Wednesday that Waller's placement on the PUP list is standard procedure for players coming out of retirement, Travis Wingfield of the Dolphins' official site reports.