Lions WR Johnson back at practice

Detroit Lions wide receiver Calvin Johnson returned to practice Friday after missing Wednesday and Thursday with a knee injury, according to the team's website.

Johnson already said Thursday he plans to play this weekend against the host Pittsburgh Steelers.

Johnson has 53 receptions for 904 yards and with nine touchdowns this season.

Also, rookie defensive end Ezekiel Ansah returned to practice Friday. He is battling an ankle issue. The first-round draft pick has 19 tackles and three sacks.