A player intentionally lies on the ball for unreasonable length of time how does the ref start the match?

If a player intentionally delays the game by lying on the ball for an unreasonable length of time, the referee will usually stop the match and may award an indirect free kick to the opposing team from the location of the ball. The referee may also issue a caution (yellow card) to the player for unsporting behavior. Once the situation is resolved, the match can be restarted with the indirect free kick.