Bob Donnan-USA TODAY Sports

Eric Montross, a former national champion with North Carolina and first-round NBA draft pick, has been diagnosed with cancer, the Montross family announced Saturday on the Tar Heels team Twitter account.

Montross, 51, is beginning treatment at UNC Lineberger Center in North Carolina.

"Our family is of course deeply concerned, but we have spent nearly three decades in the fight against children's cancer and know well the incredible advancements that are being made in oncology treatments, as well as the power of love, prayer, support and positivity," the family said in a statement on Twitter. "We are all touched by the responses our entire family has received since the news became public.

"Your support is more than appreciated; it is welcomed as a necessary part of beating cancer one day at a time. Our family is dealing with Eric's diagnosis head-on -- the only way we know how. And we are all in this fight together."

Montross has been a radio analyst on UNC men's basketball games since 2015.

The 7-foot native of Indianapolis spent four seasons playing for legendary head coach Dean Smith from 1990-94 and was a key member of the 1993 national championship squad.

He was a first-team All-Atlantic Coast Conference and consensus second-team All-America as a junior and second-team All-ACC and consensus second-team All-America selection, including Academic All-American, as a senior.

In 139 games (105 starts), Montross averaged 11.7 points, 6.8 rebounds and 1.2 blocks. He shot 58.5 percent from the field.

The Boston Celtics selected him ninth overall in the 1994 NBA Draft. He averaged 4.5 points, 4.6 rebounds and 0.6 blocks in 465 games (288 starts) over an eight-year career playing for the Celtics (1994-96), Dallas Mavericks (1996-97), the then-New Jersey Nets (1997), Philadelphia 76ers (1997), Detroit Pistons (1997-2001) and Toronto Raptors (2001-02).

More must-reads:

TODAY'S BEST
Key Knicks forward ruled out for Game 7 vs. Pacers
Pacers' Pascal Siakam leads team to Game 6 win vs. Knicks
Watch: Matt Duchene's 2OT winner sends Stars to conference final
Scottie Scheffler shoots improbable 66 after warming up for PGA Championship in a jail cell
Report: Tua Tagovailoa away from Dolphins amid contract chatter
Nuggets star has worrying comment about latest injury
Paul Skenes makes incredible Wrigley Field history in second-career MLB start
Giants rookie CF to undergo season-ending labrum surgery
Yankees' Juan Soto reacts to Hal Steinbrenner contract talk
Late goal sends Panthers to Eastern Conference Finals
Ex-teammate of Shohei Ohtani placed bets with same illegal bookmaker as interpreter 
Former Rams first-round pick retires from NFL after 11 seasons
Insider provides major injury update on Celtics' Kristaps Porzingis
Watch: Bruins strike first in Game 6 with incredible backhand goal
Dodgers make series of moves involving notable players
Hurricanes not expected to re-sign defenseman, center
Maple Leafs tab former Stanley Cup winner as new head coach
NFL insider expands on competition between Steelers QBs Russell Wilson, Justin Fields
NFL sets outrageous prices for Eagles-Packers Brazil game
Broncos 'very unlikely' to bring back former NFL interceptions leader