NFL referee Clay Martin has been released from the hospital after a bout with COVID-19, KJRH Tulsa reported Monday night.

Martin, 45, was originally pulled from officiating the Pittsburgh-Cincinnati game on Dec. 21 and was reportedly asymptomatic. But he was admitted to Saint Francis Hospital in Tulsa on Dec. 31.

Martin told KJRH that he’s “very thankful” to be home.

Adrian Hill replaced Martin on Sunday, the third game Martin has missed.

Martin has been an NFL official since 2015, serving the past three seasons as referee.