Keller was previously linked to the Leafs in trade rumors involving
Mitch Marner, with Utah reportedly interested in Marner. However, Matthews and Keller have a long history as friends, having played together for the USNTDP and representing the U.S. in multiple World Junior Championships. This playdate was likely just two old friends catching up during their off-season. While it would be exciting to see them on the same NHL team, it seems more realistic that Keller could join Matthews in Toronto rather than Matthews moving to Utah.