Here are the Vols' updated ATP Tour rankings as of April 16, 2012. The Vols are listed by highest singles ranking first. The number in parenthesis denotes change from previous week.

John-Patrick Smith

Singles: 354 (+30)

Doubles: 180 (+45)

Note: Won the doubles title at the $35,000 Challenger in Leon, Mexico, with John Peers last week. It was their third Challenger title this year and boosted Smith's doubles ranking into the top 200 for the first time ... Also advanced to the singles quarterfinals at Leon to reach a career best No. 354 ... Playing this week at the Little Rock Futures in Arkansas.

Rhyne Williams

Singles: 373 (-3)

Doubles: 389 (-3)

Note: Off last week ... Received a wild card into this week's Sarasota Open, a $100,000-level Challenger. Faces No. 165 Teymuraz Gabashvili of Russia in the opening round Monday.

Tennys Sandgren

Singles: 426 (+2)

Doubles: 363 (+4)

Note: Reached the semifinals of the Oklahoma City Futures last week ... Playing this week at the Little Rock Futures in Arkansas.

Adam Hubble

Singles: N/A

Doubles: 371 (+0)

Note: Off this week ... Preparing for three-week swing in South Korea.

Ben Rogers

Singles: N/A

Doubles: 529 (+5)

Note: Lost in the first round of doubles at the Oklahoma City Futures ... Playing this week at the Little Rock Futures in Arkansas.

Matteo Fago

Singles: 1622 (-101)

Doubles: N/A

Note: Did not play this week ... Scheduled to play qualifying next week at a $15,000 Futures in Italy.