I saw this while driving to workout this morning. It is as the Overland Park Soccer Complex. I looked at the Sprint map and did not see a tower at this location. There are 3 towers just northeast of this location, serving all the carriers, at the Blue Valley Athletic complex.
Here are the links to the images:
http://imgur.com/WuWuZ.jpg
http://imgur.com/rreTR.jpg
http://imgur.com/tBB8R.jpg