By converting $5.2 million of Brown's $6 million base salary this year, the Steelers created $3.9 million in additional cap space, according to Post-Gazette reporter Ed Bouchette.
Bouchette also wrote it tacks on $1.3 million onto Brown's cap number from 2015-17, the final three years of his contract. Brown set a Steelers franchise record with 1,499 receiving yards in 2013, and had 110 receptions en route to winning the team's MVP award.
Teams are allowed to begin talking to pending free agents on March 8, and with this move, the Steelers have some cap room available to be taken seriously in those talks. In fact, another few moves that are expected - the restructuring or release of Ike Taylor and an extension for outside linebacker Jason Worilds (who won't get a $45 million contract, but could reasonably expect around $30 million) would clear up even more space.