The Federal Public Defender appointed to represent Ramon Ernesto Martinez has moved for leave to withdraw and has filed a brief in accordance with Anders v. Calif *817 ornia, 386 U.S. 738, 87 S.Ct. 1396, 18 L.Ed.2d 493 (1967), and United States v. Flores, 632 F.3d 229 (5th Cir. 2011). Martinez has not filed a response.

During the pendency of this appeal, Martinez completed the sentence imposed upon revocation of his supervised release and was released from custody. Because Martinez has not shown that he will suffer collateral consequences as a result of the revocation of his supervised release and because no additional term of supervised release was imposed, the instant appeal does not present a case or controversy and this court lacks jurisdiction. See Spencer v. Kemna, 523 U.S. 1, 7, 118 S.Ct. 978, 140 L.Ed.2d 43 (1998); United States v. Clark, 193 F.3d 845, 847-48 (5th Cir. 1999). Accordingly, the appeal is DISMISSED AS MOOT, and counsel’s motion for leave to withdraw is DENIED as unnecessary.