That lineup was the group that lost Oklahoma City the game. Wallace came in for Holmgren with 3:24 remaining on the clock. Gilgeous-Alexander made a free throw, and then the Thunder were outscored 13-4 to blow Game 1. It wasn't the one-big lineup that doomed Oklahoma City. It was the tiny, no-big lineup that did so in the end.

Cason Wallace will get the start over Isaiah Hartenstein for the Thunder against the Pacers in Game 1 of the NBA Finals. Wallace is making his first career playoff start. The 21-year-old guard is averaging 5.

Tyrese Haliburton, meet Cason Wallace.The Oklahoma City Thunder made the surprising decision to start Wallace in Game 1 of the NBA Finals. It's for one main reason: to guard Haliburton, the Indiana Pacers' superstar point guard.