O'Leary, who underwent an angioplasty last month to reduce a 100 percent blockage of an artery in his heart, is expected to be able to return to football next year, Tom D'Angelo of the Palm Beach Post reports.
The Raiders placed O'Leary on the reserve/Non-Football Injury List on Thursday, Scott Bair of NBC Sports Bay Area reports.
O'Leary (shoulder) signed a contract with the Raiders on Saturday, Aaron Wilson of the Houston Chronicle reports.
O'Leary (shoulder) is officially inactive for Sunday's game versus the Colts.
O'Leary (shoulder) is questionable for Sunday's game against the Colts.
O'Leary (shoulder) does not have an injury tag for Sunday's game against Atlanta.
O'Leary (shoulder) was a limited participant in Wednesday's practice.
O'Leary secured four of five targets for 30 yards and a touchdown in the Jaguars' 45-10 loss to the Chargers on Sunday.
O'Leary caught one of four targets for six yards in Sunday's 28-11 loss to the Buccaneers.
O'Leary caught all four targets for 36 yards in Sunday's loss to the Titans.