GREEN BAY, Wis. -- A daily review of the hot topics coming out of Green Bay Packers training camp:

Lest you forgot about Sean Richardson when it came time to talk about playing time at the safety position, the third-year pro reminded everyone of his potential on Monday. With the pads on for the first time, Richardson made a play that has rarely been replicated by a Packers safety since the days of Nick Collins or Charles Woodson. During a team blitz period, Aaron Rodgers fired a pass over the middle to Jordy Nelson but Richardson jumped in and snatched the ball away from Nelson for an interception.

For the first padded practice of camp, the temperature on Monday morning when things kicked off at 8:20 a.m. local time was just 56 degrees. An hour into the practice, it was not yet 60 degrees, but the Packers took one of their TV timeout regeneration breaks and followed it with one short period followed by another water break. Still, when asked whether it was fun to put the pads on, veteran guard Josh Sitton said, "I mean, fun is a little strong." The practice lasted 2 hours, 26 minutes – or about 10 minutes longer than the non-padded practices each of the first two days.

Nose tackle B.J. Raji got off to a strong start in the first one-on-one pass-rushing drill. He won all three of his reps. Of course, when someone wins, it means someone else looked bad. Twice, Raji beat JC Tretter, who is trying to lock down the starting center job. Raji beat Tretter with his quickness on one turn and then overpowered him on another. Tackle Bryan Bulaga also looked good in his first turns since blowing out his knee last camp. He won all three of his reps, including one at left tackle against Clay Matthews.

In other odds and ends from practice: Cornerback Davon House had a strip-sack of Matt Flynn and recovered the fumble during the team blitz period. … If you're looking for an undrafted rookie to watch, keep an eye on inside linebacker Joe Thomas of South Carolina State. He's a bit undersized (6-1, 227) but is around the ball often. … In what could be a bad sign for undrafted rookie tight end Colt Lyerla, he was relegated to the scout team that worked against the defense at the start of practice while the majority of the offensive players, including fellow undrafted rookie tight end Justin Perillo, practiced inside the Hutson Center at the start of the session.

Outside linebacker Mike Neal said he could be cleared to practice as soon as Wednesday. He remains on the PUP list with a core muscle injury but is scheduled to be examined on Tuesday. He said he reported to camp lighter than ever, at 263 pounds. He played last season at 275, which is about 25 pounds lighter than he was is first three seasons, when he played defensive end.