ALBANY, N.Y. -- With Terrell Thomas at the hospital having his knee examined, the Giants went on with practice Monday. And Prince Amukamara had some shining moments.

Here are some observations from Monday's practice:

• There was a lot of chatter in Monday's interview sessions about Prince. Defensive coordinator Perry Fewell sounded optimistic about Amukamara, and the 2011 first-round pick also said he feels he has something to prove.

Amukamara had a couple of impressive plays where he blanketed receivers, including one in which he broke up a deep pass intended for Domenik Hixon. Corey Webster took great delight in seeing Amukamara make a play.

If Thomas’ knee injury is serious, Amukamara will be one of the cornerbacks who will have to step up.

• One of the other corners who will be needed if Thomas is out for a while is Jayron Hosley. But the rookie suffered a laceration to his knee when he slipped on the grass.

Hosley wasn’t the only Giant who slipped. Several players lost their footing on the grass, even though the weather was hot and dry.

“The falling down is ridiculous,” Coughlin said of all the slips in practice. “We fall down. We just fall down.”

• The tight ends were very much involved on Monday. Bear Pascoe made several catches, and Martellus Bennett had two nice receptions as well. Those two have made the most noise at tight end, although Ryan Purvis has had some catches as well.

Rookie Adrien Robinson dropped one pass and had another pass poked out of his hands from behind.

• There were several impressive defensive plays on Monday, as the practice got more physical with players wearing shoulder pads.

Linebacker Jacquian Williams absolutely blew up a running play by stuffing David Wilson at the line of scrimmage.

Defensive end Jason Pierre-Paul didn’t just bat down an Eli Manning pass at the line of scrimmage -- he rejected it with authority, sending a loud thud across the field.

Cornerback Dante Hughes had an interception, and safety Will Hill also looked good, as the defense had several coverage wins in passing drills, resulting in quarterbacks not even passing the ball after several seconds.

• Wide receiver Dan DePalma had several nice grabs across the middle and showed good hands.