Dolphins' Xavien Howard to go on IR with knee injury

Miami Dolphins cornerback Xavien Howard (25) walks off the field after a 27-14 loss to the Pittsburgh Steelers in an NFL football game in Pittsburgh, Monday, Oct. 28, 2019. (AP Photo/Keith Srakocic)

Pittsburgh Steelers free safety Minkah Fitzpatrick, left, and Miami Dolphins cornerback Xavien Howard visit on the field following an NFL football game in Pittsburgh, Monday, Oct. 28, 2019. The Steelers won 27-14. (AP Photo/Don Wright)

Pittsburgh Steelers free safety Minkah Fitzpatrick, left, and Miami Dolphins cornerback Xavien Howard visit on the field following an NFL football game in Pittsburgh, Monday, Oct. 28, 2019. The Steelers won 27-14. (AP Photo/Don Wright)