It didn't take much time for the Miami Dolphins to make the biggest splash of the NFL's free agency period.

The Dolphins have confirmed that they have signed former Pittsburgh Steelers wide receiver Mike Wallace.

Wallace was considered to be one of the jewels of the free agent pool. In four seasons with the Steelers, Wallace recorded 32 touchdowns on 235 receptions and was invited to the Pro Bowl following the 2011 season.

Missing a true deep threat since trading away Brandon Marshall before the 2012 season, Wallace's speed will be a potent addition to an average Dolphins offense.

The Dolphins, desperate to give help to quarterback Ryan Tannehill, resigned Brian Hartline to a five-year deal worth over $30 million last week.

The Dolphins also made a big move at linebacker.

According to multiple reports, the Fins added linebackers Dannell Ellerbe and Phillip Wheeler.

To make room for him, the Fins have reportedly cut veteran linebacker Karlos Dansby.

The Dolphins also announced Tuesday night that they have re-signed safety Chris Clemmons.