Marcus is a pro tennis player. He is a philanthropist and an advocate for effective altruism through his work as the founder of High Impact Athletes.
![Marcus Daniell playing tennis](https://jamiewoodhouse.com/wp-content/uploads/2021/05/Marcus-Daniell_RG15_12_18685529814-220x208.jpg)
Marcus is a pro tennis player. He is a philanthropist and an advocate for effective altruism through his work as the founder of High Impact Athletes.