Notes: The latest on the O-line, CBs, more

EAST RUTHERFORD, N.J. -- It appears Sean Locklear will get his second consecutive start at left tackle when the Giants face the Buccaneers on Sunday at MetLife Stadium.

Will Beatty -- the projected starter at LT coming into the season -- is finally healthy and practicing, after missing most of the preseason with a bad back. But Locklear is still listed as the starter on the depth chart.

BuccaneersGiants"There will be no change there unless I let you know," coach Tom Coughlin said Thursday, when asked about the left tackle situation.

ON THE OTHER HAND: It remains unclear who will start at cornerback Sunday opposite Corey Webster. Prince Amukamara and Michael Coe both practiced Thursday, but on a limited basis.

"That's a great question," defensive coordinator Perry Fewell said. "I can't answer that question right now. Prince has practiced this week, Michael has practiced this week. It'll be a game-day thing. We'll have to talk to the trainers, and Tom will have to make that call."

Amukamara missed the Week 1 loss to the Cowboys, still recovering from a high ankle sprain suffered in the preseason. Coe made his first NFL start, but left the game near the end of the third quarter after tweaking his hamstring.

BIG DEBUT? Defensive tackle Marvin Austin pronounced himself ready to play on Sunday against the Bucs.

Austin, the Giants' second-round draft pick in 2011 out of North Carolina, missed all of his rookie year with a torn pectoral muscle. He has been suffering from a back injury this year, but has practiced -- on a limited basis -- the past two days.

"That's definitely the plan," said Austin, when asked about playing Sunday. "I feel good. I'm actually about to get some cardio in, so I can be prepared to go out there and play fast."

"He's looked OK," Fewell. "Marvin's not back yet. But he's looked OK. Again, it's Coach's call."

REPLACING MARIO: Offensive coordinator Kevin Gilbride was asked Thursday is he thinks the Giants have been able to compensate for the loss of wide receiver Mario Manningham.

Manningham had 39 catches for 523 yards a season ago, serving as the team's third wideout, behind Hakeem Nicks and Victor Cruz. He signed with the 49ers as a free agent in the offseason.

"We're looking for that guy to make the big plays when they load up on everybody else -- when they're doubling Vic and Hakeem, then someone needs to win for you, and it has to be the tight end or the third wide receiver or the (running) back," Gilbride said.

"We've been fortunate when we've played real well to have that third guy step up. It was Mario last year, the last five, six games when he was healthy, and through the playoffs made a lot of big plays for us, and made the most of the opportunities when they were presented to him because of Hakeem and Victor. We're waiting."

Domenik Hixon started in that spot in Week 1 against the Cowboys, and had three catches for 55 yards, including a beautiful 39-yard grab.

"I thought Domenik, the few chances we gave him, he made some plays for us and we had an opportunity for another touchdown," Gilbride said. "His part, he fulfilled what we needed from that position. We just need more from the rest of the positions; that's what we’re looking for."