OPINION BY
¶ 1 Appellant, Dale Gould, appeals from the judgment of sentence entered on January 24, 2006, by the Honorable Conrad B. Capuzzi, P.J., Court of Common Pleas of Fayette County. After careful review, we affirm.
¶ 2 On September 8, 2004, Gould’s grandson, Michael Gibbs, a confidential informant, accompanied undercover police officer Daniel Strabinsky to Gould’s apartment where he resided with co-defendant Jane Gould. Officer Strabinsky told Gould that he was interested in buying some pills, and that he had half the money for the purchase. Gould then instructed Jane Gould to go in the other room and retrieve the pills. When Jane Gould returned, Gould instructed her to count out fifteen pills, after which she placed them in a plastic bag. Officer Strabinsky attempted to hand the money to Gould, but Gould directed Officer Strabinsky to pay Jane Gould. Thereafter, Officer Strabinsky and Gibbs left the residence and returned to the police station with the pills. Test results later revealed that the pills were a Schedule II controlled substance, Oxycontin.
¶3 Gould was subsequently charged with delivery of a controlled substance,
¶ 4 On appeal, Gould raises the following two issues for our review:
1. WAS THE SENTENCE IN THIS CASE VINDICTIVE IN LIGHT OF THE SENTENCE RECEIVED BY THE CODEFENDANT?
2. DID THE COMMONWEALTH VIOLATE THE EQUAL PROTECTION CLAUSE OF THE CONSTITUTION WHEN IT FILED A NOTICE OF MANDATORY SENTENCING AGAINST ONLY ONE OF THE CO-DEFENDANTS?
Appellant’s Brief, at 6.
¶ 5 We begin by addressing Gould’s first issue on appeal, wherein he asserts that the sentence imposed by the trial court was vindictive. This issue amounts to a challenge to the discretionary aspect of his sentence. It is well-settled that appeals of discretionary aspects of a sentence are not reviewable as a matter of right. See Commonwealth v. McNear,
¶ 6 Rule 2119(f) states:
An appellant who challenges the discretionary aspects of a sentence in a criminal matter shall set forth in his brief a concise statement of the reasons relied upon for allowance of appeal with respect to the discretionary aspects of a sentence. The statement shall immediately precede the argument on the merits with respect to the discretionary aspects of sentence.
Pa.R.A.P. 2119(f), 42 Pa. Cons.Stat.Amn.
¶ 7 We examine an appellant’s Rule 2119(f) statement to determine whether a substantial question exists. See Commonwealth v. Shugars,
¶ 8 In the case sub judice, Gould has failed to provide a Rule 2119(f) statement in his brief. The Commonwealth, however, has not objected to this violation. “[I]n the absence of any objection from the Commonwealth, we are empowered to review claims that otherwise fail to comply with Rule 2119(f).” Commonwealth v. Bonds,
¶ 9 When an appellant challenges the discretionary aspects of the sentence imposed, he must present a substantial question as to the appropriateness of the sentence. See Commonwealth v.
¶ 10 Preliminarily, we note that “[i]t is well-settled that it is within the sole discretion of the Commonwealth to invoke the mandatory minimum sentence.” See Commonwealth v. Smith,
¶ 11 In the instant case, however, Gould contends that the sentence imposed was “vindictive” under the facts and circumstances of his particular case. While conceding that the sentence was within the statutory minimum, Gould claims that in light of the sentence received by his co-defendant, Jane Gould, Gould’s sentence is vindictive and excessive. When a sentence is within the statutory limits, this Court must review each excessiveness claim on a case-by-case basis. See Commonwealth v. Titus,
¶ 12 Gould’s contention fails to raise a substantial question. Gould’s brief neither indicates the provision of the Sentencing Code that the trial court purportedly violated, nor sets forth a violation of a fundamental norm, and therefore Gould does not properly challenge the discretionary aspects of his sentence. Thus, Gould has failed to raise a substantial question that his sentence was vindictive and excessive.
¶ 13 Gould’s second issue on appeal raises a claim that the Commonwealth violated the equal protection clause of the Constitution in filing a notice of mandatory sentence against only one co-defendant. However, Gould fails to support this claim with relevant citations to case law and to the record. An appellate brief must provide citations to the record and to any relevant supporting authority. Commonwealth v. Berry,
¶ 14 Judgment of sentence affirmed. Jurisdiction relinquished.
Notes
. 35Pa.Stat. § 780-113(30).
. Id.
. 35Pa.Stat. § 780-113(16).
. 18 Pa. Cons.Stat.Ann. § 903.
. Gould’s co-defendant, Jane Gould, was subsequently charged with the same crimes after which, she entered into a general guilty plea agreement and was sentenced on December 29, 2005, to a term of two years probation, along with fees and costs of prosecution.
. The mandatory minimum sentencing provisions set forth in 18 PA. CONS. STAT.ANN. § 7508(a)(2)(i) state, in pertinent part:
§ 7508. Drug trafficking sentencing and penalties
(a) General rule. — Notwithstanding any other provisions of this or any other act to the contrary, the following provisions shall apply:
2) A person who is convicted of violating section 13(a)(14), (30) or (37) of The Controlled Substance, Drug, Device and Cosmetic Act where the controlled substance or a mixture containing it is classified in Schedule I or Schedule II under section 4 of that act and is a narcotic drug shall, upon conviction, be sentenced to a mandatory minimum term of imprisonment and a fine as set forth in this subsection:
(i) when the aggregate weight of the compound or mixture containing the substance involved is at least 2.0 grams and less than ten grams; two years in prison and a fine of $5,000 or such larger amount as is sufficient to exhaust the assets utilized in and the proceeds from the illegal activity; however, if at the time of sentencing the defendant has been convicted of another drug trafficking offense: three years in prison and $10,000 or such larger amount as is sufficient to exhaust the assets utilized in and the proceeds from the illegal activity
18 Pa. Cons.Stat.Ann. § 7508(a)(2)(i).
In the case sub judice, Gould does not raise a challenge to the mandatory minimum sentencing provisions, which implicate the legality of the sentence imposed. See Commonwealth v. Leverette,
