Ray Lewis grew up using a deck of cards to do push-ups and sit-ups. If he drew a 7, he would do 7. An Ace was 25 and a Joker 30. He would go through the whole deck. During his NFL career, he would do it 3 times for each exercise. – WTF Fun Facts
Source: https://www.livestrong.com/article/361617-ray-lewis-workout-program/
