This is your daily link roundup of our favorite sports and entertainment posts on the web for Feb. 24.
• The Instagrams of the week include this arresting shot from track athlete Leryn Franco.
• Dale Earnhardt Jr. kept his promise to join Twitter if he won the Daytona 500. He already has more than 300,000 followers.
• Fox ran last year's Daytona 500 during the rain delay. Some viewers thought it was the real thing. Hilarity ensued.
• 50 Cent offered to kiss Michael Waltrip if he won the 500. Armed with that motivation, Waltrip finished 41st.
• Athletes who have lost a ridiculous amount of weight, including Barry Bonds, whose melon has shrunk back down to human size.
• And now for something completely different: the world's weirdest bras.
• Watch a short kid dunk at a pep rally. So he had a little help.
• Thomas Robinson blocked Corey Brewer's dunk attempt and stole a piece of his soul in the process.
-- Email us with any compelling sports-related links at firstname.lastname@example.org