Create a vibrant T-shirt design featuring a humorous phrase that resonates with professionals in the sports industry. The design should showcase a watercolor style, utilizing warm colors like reds, oranges, and yellows to evoke energy and enthusiasm. The phrase, such as "Running Late is My Cardio," should be prominently displayed in a playful, bold font, ensuring it captures attention. Surround the text with watercolor illustrations of sports equipment, like a basketball, soccer ball, and a whistle, blending seamlessly into the background. The overall composition should be dynamic, with the watercolor wash providing a lively backdrop that enhances the humor and sports theme.