To have more than 55,000 people cheering for you, giving you a stand ovation.
Well, the person is Wang Chien-Ming.
This was the game between Yankees and Red Sox. Wang did a great job and won the game against the best team in the league (at the time anyway), and the photo was taken when Wang left the game for good.
I love this photo because it clearly shows how much appreciation and support the crowd shows. To be on the biggest stage, and bring out the sort of performance like Wang does each and every time he steps on to the pitch, is just remarkable.