Trying to snap a two-game losing skid, the Titans flew to The Meadowlands, donned their Houston Oilers throwbacks, and played a Week 3 AFL Legacy game with the New York Jets.  Tennessee would struggle in the first quarter as Jets quarterback Mark Sanchez got a 14-yard touchdown run and completed a 2-yard touchdown pass to tight end Ben Hartsock.  The Titans would climb into the game in the second quarter with running back LenDale White's 5-yard touchdown run and kicker Rob Bironas' 38-yard field goal. In the third quarter, Tennessee would take the lead with quarterback Kerry Collins' 9-yard touchdown pass to wide receiver Nate Washington.  However, New York would strike back with Sanchez's 6-yard touchdown pass to wide receiver Jerricho Cotchery.  The Jets would increase their lead in the fourth quarter with kicker Jay Feely's 48-yard field goal.  The Titans tried to rally, but New York's defense would stand firm and prevented any possible comeback attempt. With the loss, Tennessee would fall to 0-3 for the first time since the 2006 season.
Question: How many points were the Titans trailing by at the half?
Answer: 4