As reported today in Nikkan-Gendai Jiji News, Yokozuna Kisenosato will sit out the summer sumo tour of northern Japan. The Jungyo (literally, making the rounds) is a daily traveling sumo show that takes a set of some 50 rikishi to medium sized cities across Japan to bring sumo closer to the fans and the public, and is responsible for driving and maintaining sumo’s popularity.
His absence should be view as part of the larger program to heal up the very popular Yokozuna, and may be a sign that he will or currently is undergoing expanded medical treatment for what could be a career ending injury to his left pectoral muscle.
Corrected: Thanks to Herouth for catching the wrong link. I need to sleep instead of wading through Kisenosato news. The other article is more focused on his injuries. You can find it here.