The Giants have been forced to have rookies start the regular season in the past, but it's hard to recall the last one to be with the first team at the beginning of training camp.

This year they have two.

Left tackle Ereck Flowers and safety Landon Collins, the first- and second-round picks, respectively, are penciled in to be starters and have been taking all of the reps with that group (Flowers actually takes a lot of second-team reps, too, just to see the extra practice time). The Giants hope the extra time with the veterans will allow some of their rookie-ness to wash away by the time the Sept. 13 opener comes around. So far?

"I haven't seen anything particularly good or bad just yet. It's very early," Tom Coughlin said. "They're both working hard."

OBJ cutting up DBs

Odell Beckham Jr. caught a short pass and zig-zagged his way through the Giants' secondary with a series of blistering cuts during Friday's practice. It was reassuring to see him moving so easily after having hamstring issues in the spring, but surely the defensive backs he left behind -- Prince Amukamara and Dominique Rodgers-Cromartie -- were not thrilled about it.

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In fact, they still were discussing it Saturday, arguing that in an actual game with actual tackling, those moves would not have been as effective.

"It's funny you brought that up because we've been arguing about that since this morning," Amukamara said. "He keeps saying that I wasn't a factor and that he was more worried about DRC. It was on film and I think I would have got him because he did cut back. He just said like, 'You touched me and we're not playing two-hand touch' or whatever. I told him, 'All right, next time I'm going to give it to you.' Let me clarify that: 'I'm going to hit you.' "

This being training camp, there is no full tackling. And the Giants are very wary of Beckham's health to begin with. So how would Amukamara be able to sneak in a (friendly) clobbering of Beckham, which he probably wants to do even more now, given that the receiver caught a pass against him in Saturday's practice and taunted him by throwing the ball back at him?

"I'd make it seem circumstantial or something, I don't know," he said.

Giant steps

Giants videos

Tight end Jerome Cunningham and wide receiver Preston Parker were carted off the field with cramps late in practice. Guard John Jerry has been ill and has been limited the first two days . . . Coughlin was upset with the offense's play in Saturday's workout. "I didn't think too many people on offense showed me anything today," he said . . . Tight end Will Tye (Stony Brook University) made a nice catch over the middle, showing good speed . . . The Giants announced that Dr. Scott Rodeo is their new team physician, replacing Dr. Russell Warren, who had been in that position for more than 31 years. Warren will remain with the team as an active emeritus team physician.