In close game situations in the NFL, if for example the opposing quarterback completes a pass to one of their receivers, can you challenge the ruling on the field with no timeout? This is questionable, as you can call a timeout and then the officials will review that play. Also, you lose a timeout when you call a challenge, so why wouldn't coaches always challenge outside the 2 minute mark if you did not have a timeout to lose (assuming that the challenging team has a coach's challenge left)