Finally, the 49ers have some breathing room under the $133 million salary cap. Last week, the 49ers completed the signings of their entire 12-player draft class. And on Monday, they realize the cap savings from a move made on March 11 when the club parted ways with cornerback Carlos Rogers. The move was designed a post-June 1 release, which meant that Rogers’ scheduled $6.6 pay in salary and bonuses from the 49ers would not be wiped off the books until now. Rogers, who signed a one-year, $3.5 million contract with the Raiders after his release from the 49ers, will also count $1.494 million against the 49ers’ 2015 cap. That figure consists of the remaining proration on his original $5 million signing bonus from March 2011 and a later restructure in which he received a $900,000 signing bonus. The 49ers have an estimated $8.32 million in cap room. Only the top-51 paid players on a team’s offseason roster counts against the cap until the final cuts. Only three draft 49ers draft picks count against the top-51. Center Marcus Martin’s $587,813 cap figure is No. 51.