The Major League Baseball Players Association (MLBPA) has entered into its first partnership with a nutritional supplement company. Its deal is with Klean Athlete, an NSF Certified for Sport line of 10 nutritional supplements that are marketed as being 100% clean of all banned substances. The partnership will put Klean Athlete and its products in front of MLB players and hopefully give them cause to stay clear of ingesting food products that can put their careers at risk.