By C.W. Sesno, SI.com
The Daily Bagel is your dose of the interesting reporting, writing and quipping from around the Internet.
• How close did you follow the 2011 tennis season? Take this quiz from ESPN.com and test your knowledge. I missed four total out of 25 (Nos. 6, 7, 11, 24) but particularly can't believe I got No. 6 wrong! That's a record worth remembering for one of the best matches of 2011. The answers are linked at the bottom of the post. See how many you can get and let us know in the comments.
• The stats expert over at Women's Tennis Blog takes a look at the five players in history to reach No. 1 before winning a Slam. Kim Clijsters was the first "Slamless No. 1" in 2003, then Amelie Mauresmo, Jelena Jankovic, Dinara Safina and Caroline Wozniacki followed suit. It's an interesting look at these players, their performance at the year-end Championships and overall success during the season they reached No. 1.
• If Kimiko Date Krumm were to get Venus Williams a Christmas gift, what would it be? Tennis.com hands out secret Santa gifts to and from players.
• Getting to know Jack Sock. The 18-year-old American has definite potential. I watched him play at the U.S. Open this year and last, and it's clear he has the tools and athleticism to compete at the pro level. With a little polishing, and the confidence gained from a few more match wins under his belt, I wouldn't be surprised to see the current No. 381 crack the top 150 by the end of the year.
•What's in store for Juan Martin del Potro in 2012? ATPWorldTour.com breaks down the big-hitting Argentine's rise in 2009 and fall due to wrist injury. Here's to hoping he can reestablish himself as a top five player next year.Walmart money put to good use