If Hajime Matsuda, team owner, is worried about a player, he usually makes him the wallpaper for his mobile phone. His current wallpaper is Takeru Imamura. It was Kan Otake before that. Some players make it a point not to become the owner's mobile phone wallpaper.Source: Nikkan Sports 12/10/2013 via Yakyu Baka.
Not entirely sure why Matsuda-owner is worried about Imamura but in case he needs another image, here's Imamura's 2012 Hiroshima Athlete Magazine Starting Lineup card (#16):