CHARLOTTE, N.C. -- Two-time NASCAR champion Tony Stewart is losing a sponsor at the end of the season.

A spokesman for Old Spice said Sunday it will not renew its sponsorship with Stewart when its current deal expires at the end of the year. Mike Norton, a brand spokesman for Old Spice, says the decision was based on a change in marketing strategies.

The Proctor and Gamble product has partnered with Stewart the past 11 years.

The sponsorship withdrawal was first reported by the Charlotte Observer.

Old Spice is the primary sponsor for Stewart's car in 14 races this season. Office Depot will continue as a co-primary sponsor.