The field hockey player, who recently appeared on ITV's "I'm a Celebrity...Get Me Out Of Here!", joins athletes including world champion boxer Carl Frampton on the roster of brand ambassadors for nutrition brand MSC Nutrition.
The 28-year-old won gold at the 2016 Olympic Games in Rio and received an MBE alongside her Team GB hockey teammates in the 2016 New Year’s Honours List.
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The hockey star comments, "As a competitive athlete performing at elite level, it's important that my supplement supplier of choice can provide me with a high quality product as well as the reliability I need to continue to succeed. My aim is always to perform at the highest possible level and I know MSC can provide the service I need to progress further.
"MSC is a company which prioritises the personal touch, tailoring supplements to the individual, which for me sets them above all other competitors. I deeply appreciate the support the company has already given me and I’m excited to work with them on an ongoing basis as an MSC brand ambassador."
Nicky Edmonds, director of MSC Nutrition said: “We’re thrilled to have Sam join the MSC Team and represent our brand as it continues to go from strength to strength. As a company we have watched and admired Sam throughout her career so far, not least during her incredible performance at the 2016 Rio Olympic Games.
“As a company MSC invest a lot of time into the research & development of its products. We are a member Informed Sport, ensuring all of our supplements are screened and tested within the parameters of Informed Sport and LGC Laboratories.
"Athlete safety is paramount and MSC products are formulated to meet the requirements of athletes performing at the highest of levels. Created using only the highest raw grade materials our mission is to provide all of our athletes with the confidence they need to succeed, safe in the knowledge that they are working with one of the most reputable sports nutrition brands around."