An MRI confirmed the MCL sprain in the knee of Steelers first-round defensive lineman Derrick Harmon, Gerry Dulac of the Pittsburgh Post-Gazette reports.

Several Steelers are categorized as week to week by head coach Mike Tomlin with just two weeks to the start of the regular season.

Veteran wide receiver Russell Gage had an outside shot to make the San Francisco 49ers' 53-man roster, but an injury might cost him that chance.

The MCL (medial collateral ligament) is an 8-10 centimeter band of tissue that runs along the inner edge of your knee. It helps keep your knee stable and working properly when you move.

Indiana Fever guard Sophie Cunningham will miss the remainder of the season due to the right knee injury she sustained in Sunday's game against the Connecticut Sun, the team announced. Cunningham tore her MCL,

The 49ers have been dealing with injury issues at wide receiver all summer and the list grew this week when Russell Gage sprained his MCL in practice.