Defendant-Appellant Antonio Yahuaca appeals the 240-month below-guidelines sentence imposed following his guilty plea conviction of conspiracy to possess with intent to distribute 100 kilograms or more of marijuana. Because Yahuaca committed the offense after two prior felony convictions for controlled substance offenses, his guidelines range was calculated pursuant to the U.S.S.G. § 4B1.1 career-offender guideline. He now argues that his sentence violates the Eighth Amendment’s prohibition against cruel and unusual punishment because his sentence is grossly disproportionate to his offense. He also contends that his presentence investigation report (PSR) should not have included two § 2D1.1 offense-level enhancements. We review these unpreserved issues for plain error. See United States v. Ebron, 683 F.3d 105, 155 (5th Cir. 2012); United States v. Mondragon-Santiago, 564 F.3d 357, 361 (5th Cir. 2009).

Yahuaca has failed to establish any error, let alone plain error. His below-guidelines 240-month sentence was not grossly *187 disproportionate to the severity of his controlled substance offense. See United States v. Mills, 843 F.3d 210, 217 (5th Cir. 2016), cert. denied, — U.S. -, 137 S.Ct. 1601, 197 L.Ed.2d 726 (2017) (No. 16-8524); see also Rummel v. Estelle, 445 U.S. 263, 265-67, 100 S.Ct. 1133, 63 L.Ed.2d 382 (1980). The § 2D1.1 offense-level enhancements reflected in his PSR were not included in the enhanced career-offender guidelines range considered by the district court at sentencing, so his challenge to those enhancements is likewise meritless.

AFFIRMED.