MIAMI -- The Marlins have reached an agreement on a $2.6 million bonus with right-hander Andrew Heaney of Oklahoma State, their first-round pick in last month's First-Year Player Draft, according to MLB.com's Jonathan Mayo.

With Friday's 5 p.m. ET deadline for signing Draft picks approaching, Heaney and third-rounder Avery Romero are the Marlins' only two selections from the first 10 rounds who remain unsigned.

The Marlins have not commented on the agreement.

According to reports, Heaney was asking for the $2.8 million signing bonus slotted for the No. 9 overall selection; the team offered $2.6 million. Per team policy, Heaney would have to pass a physical before he could sign a contract, and no such physical has taken place.

President David Samson offered little insight into the team's negotiations.

"I'll talk again [on Friday] at 5," Samson said. "We'll be here [on Friday] at 5. There's no reason to talk about it now."

Should the Marlins not sign Heaney, they would receive the No. 10 overall pick in the 2013 First-Year Player Draft.

Marlins expect to activate Mujica on Sunday

MIAMI -- Although the Marlins' closer situation remains up in the air, the team is close to returning another key bullpen arm to the mix.

Right-handed reliever Edward Mujica, who broke his right pinky toe on June 29, expects to be activated from the 15-day disabled list on Sunday if everything goes as planned.

Mujica threw a bullpen session on Thursday, the second time he has done so since removing a walking boot. After the first bullpen session, on Tuesday, Mujica said that he felt some pain during his first few throws but felt good afterward.

He expects to make a rehab appearance in Jupiter, Fla., on either Friday or Saturday.

"I feel much better," Mujica said on Thursday. "A little bit of pain, but nothing like the first time. It feels much better right now."

His only concern is being able to make plays on ground balls and comebackers, but he plans to do some running drills to test the toe.

"I just might be a little bit scared for running stuff, like covering first, fielding ... bunt plays and everything," he said.

Bonifacio will be back for series vs. Nationals

MIAMI -- When the Marlins begin the second half of the season on Friday, against the Nationals, a familiar face should be back in the lineup.

Emilio Bonifacio, who has been on the 15-day disabled list since May 20 with a sprained left thumb and who underwent surgery on May 25 to repair a ligament, is expected to be activated prior to the series opener and be back in center field.

"It feels like it's been a long time," Bonifacio said. "It feels like a year. Finally [on Friday] I'm going to be there. ... [I'm] really excited."

When Bonifacio returns, he will wear a protective cast on his left hand -- much like an oven mitt -- when he is running the bases. Other than that, he has no limitations, and said that everything is feeling pretty strong.

Prior to his injury, which he sustained while sliding head-first into second base on a steal attempt, Bonifacio led the league with 20 stolen bases. Since he hit the DL, the Marlins' pace on the basepaths has slowed considerably.

In six rehab outings, Bonifacio is 2-for-2 in stolen base attempts, and the speedster hopes to pick up where he left off when he returns.

"Just keep doing my game," he said. "Don't ... be afraid, that's what rehab is for."

Worth noting

• Hanley Ramirez, who lacerated the knuckle on his right ring finger when he hit a cooling fan in the dugout at Busch Stadium just before the All-Star break, expects to be in the lineup on Friday. He took two stitches in the hand but said the knuckle is doing well and that he is able to swing a bat.

"There wasn't any concern about it," Ramirez said. "Hopefully I will be in the lineup."