The Titans drafted him in the fourth round in 2003, and he started five of 39 games through his first three seasons with 9½ career sacks and 99 career tackles. He missed the 2006 season with a torn Achilles' tendon, then was placed on injured reserve for 2007 with a knee injury before being waived.
Long is of one-fourth Armenian descent and cherishes his heritage greatly. He has a tattoo of the seventh letter of the Armenian alphabet (Է) over the Armenian flag on his biceps. Rien Long's trip to Armenia and Nagorno-Karabakh in March 2006 was the subject of a feature-length documentary, "The Long Journey from the NFL to Armenia" (www.globalistfilms.com).
Just before midnight on January 21, 2008, Long crashed his 2005 Ford Mustang into a rock wall while driving too fast on an I-40 on-ramp near downtown Nashville. Long was taken to Vanderbilt University Medical Center where he suffered injuries that left him in critical condition.