Cooper Flagg appears to have soft-launched his rumored relationship with Arianna Roberson after the two were spotted vacationing together in Turks and Caicos during the NBA offseason.
Fresh off winning NBA Rookie of the Year with the Dallas Mavericks, Flagg shared photos from Noah’s Ark Beach Club, a floating beach destination in the Caribbean. Not long after, Roberson posted pictures from the exact same location, including matching ocean swings that quickly sent NBA fans into detective mode online.
Cooper Flagg and his girlfriend Arianna Roberson enjoying the offseason in Turks and Caicos pic.twitter.com/gb09LTbOLi
— Legion Hoops (@LegionHoops) May 9, 2026
The internet immediately connected the dots. While neither Flagg nor Roberson directly posted photos together, fans noticed the timing, location, and nearly identical backgrounds. The rumors only intensified because this is not the first time the two have been linked publicly.
Back in April, Roberson was spotted sitting alongside Flagg’s parents during his Rookie of the Year press conference in Dallas. Cameras caught the Duke women’s basketball player seated closely with Flagg’s family while they laughed during questions about his ‘Cooper Swagg’ nickname. Fans instantly began speculating about a relationship.
Now, the Turks and Caicos trip has added even more fuel to those rumors. The connection between the two makes plenty of sense. Both attended Duke University during the 2024-25 season before Flagg entered the NBA Draft as the projected No. 1 overall pick.
Roberson, a 6-foot-4 center for the Duke women’s basketball team, emerged as an important contributor during her redshirt freshman season. She averaged 8.0 points per game while shooting 41% from the field across 33 games for the Blue Devils. Basketball also runs in her family. Her brother, Andre Roberson, spent seven seasons in the NBA and became known as one of the league’s top perimeter defenders during his years with the Oklahoma City Thunder.
Meanwhile, Flagg’s rookie NBA season completely lived up to the hype. The 19-year-old averaged 21.0 points, 6.7 rebounds, 4.5 assists, and 1.2 steals per game while shooting 46% from the field in 70 starts. Despite Dallas missing the playoffs, Flagg established himself as the franchise’s centerpiece almost immediately following the blockbuster Luka Doncic trade.
His season included multiple historic accomplishments.
Flagg became the first rookie since Michael Jordan in 1984 to lead his team in points, rebounds, assists, and steals during a season. He also exploded for a 51-point game against the Orlando Magic, becoming the youngest player in NBA history to score 50 points in a game.
Mavericks head coach Jason Kidd has already called Flagg the future face of the organization. Off the court, Flagg has mostly stayed private about his personal life. That is why fans viewed the press conference moment and now the vacation pictures as a subtle relationship reveal instead of a full public announcement.
For now, neither Flagg nor Roberson has officially confirmed anything publicly.
But after matching vacation posts in Turks and Caicos, sitting with family at award ceremonies, and multiple public appearances together, fans are becoming increasingly convinced that the Mavericks star and the Duke standout are officially a couple.
