Down doesn't necessarily mean out. That is a point I have tried to emphasize in my columns throughout the years. No one exemplifies this better than Jon Lester. Lester is certainly not a household name, but his story is a great one. The 24-year-old lefty pitched the first no-hitter in the Bigs this season last night, topping the Kansas City Royals by a score of 7-0. Lester, who pitches for the Boston Red Sox and won the final game of the 2007 World Series, survived large cell lymphoma in late 2006. It is now in remission. Lester is a winner and didn't let his difficult circumstances stop him from climbing to the top. This is a great story that applies to sports, life and the markets. Today I'm going with Citigroup ( C). The company is a heavy hitter and one that has gotten knocked around in the last few months. Things have been so bad for the company, it is trading at its lowest levels in almost a decade. In fact, it hit its 52-week low of $17.99 in mid-March and is still trading well below its highest point ($55.53) in the last year. It closed at $22.99 on Monday and is off 58% in the last year. Even with all its subprime problems, it's hard to believe we can grab shares of Citigroup at such a steal, but now is the time to get in this game.