It’s hard to believe that Udonis Haslem was once an undrafted rookie trying desperately to simply make the Heat’s roster. On Tuesday, Haslem moved ahead of Rony Seikaly for second place on the Heat’s all-time rebounding list.

Haslem entered Tuesday’s 120-108 victory against the Kings trailing Seikaly, the Heat’s first draft pick in franchise history, by three rebounds. Haslem moved ahead of Seikaly in the second half and received a standing ovation with 6:34 left in the game when his put-back dunk off a missed three-pointer by Mike Miller gave the Heat a 108-96 advantage.

“It’s a huge, huge accomplishment,” Haslem said. “For me coming in, I never thought that I’d be in this situation and achieving so many things that I’ve had the opportunity to achieve. It’s just a blessing, and I’m happy about it and, hopefully, I can continue to move on up the ladder.”

Haslem has 4,549 rebounds. Alonzo Mourning holds the franchise record with 4,807. Heat guard Dwyane Wade, a co-captain along with Haslem, said all of Haslem’s hard work has earned him respect throughout the NBA.

“He’s so respected,” Wade said.

Wade said Haslem’s ability to remain productive despite nagging injuries and shooting slumps sets him apart. Since the beginning of his career, Haslem has been a valued “glue guy” for team president Pat Riley, who values toughness above all else.

“He’s a guy who’s going to find a way to help this team,” Wade said. “No matter what’s going on with U.D. — hurt, not shooting the ball well, whatever is going on — he’s going to find a way to be a productive player.”

Heat coach Erik Spoelstra recalled Haslem’s humble professional beginnings Tuesday.

“I always think about that first summer league training camp with U.D.,” Spoelstra said. “He was something else that entire week, somebody who was so desperate — and we’re talking about a first-team All-American, a lot of guys would come in thinking their reputation would take care of it — but he had to earn his way.

“Spent a year in Europe and then to come back to his hometown team and absolutely force us to create room for him on a veteran roster, and that week we decided two things for him: No. 1, this guy would have to have a spot in our training camp. And No. 2, we would have to physically hold him out of some of the workouts because he was hurting so many people. He was that desperate to make the team.”

Miller’s time

Miller is shooting .519 from three-point range this season, but he’s also contributing as an important perimeter defender in his limited minutes.

Miller has had at least four rebounds in three of his past four games, including eight against Milwaukee and six on Sunday against the Magic.

“That’s who he is and who he has proven to be his entire career,” Spoelstra said. “That is one of the reasons why we like him. He is so much more dimensional that simply a shooter to space the floor.

“For us, when we play different, smaller lineups, it is paramount that our perimeter players rebound. He is one of the best wing players that gets his head over the rim and puts his body in harm’s way. He has a great knack for the ball.”

BOSH quiet

The days of Chris Bosh filling up the stat sheet when Wade was injured seem like a distant memory. Entering Tuesday’s game against the Kings, Bosh was averaging 13.8 points per game during the Heat’s six-game winning streak.

For his part, Bosh isn’t too worried about it as long as the Heat keeps rolling along.

“We’re trying to win a championship, and there’s no time for egos or anything,” Bosh said. “And especially with me, I don’t really worry about that because I know at any given time that can turn around.

“And if I miss shots, I don’t really care about that. I just care about what the score says at the end of games, and we’ve been winning in a pretty decent fashion.”