The natural heartbeat of the Turkish midfield, Tugay can operate as the funnel through which they channel their midfield traffic, or as the anchor in front of the defence.
Coach Gunes may well opt to use him in that role to negate Inamoto, but that in turn could hamper his effectiveness going forward.
Takayuki Suzuki v Bulent Korkmaz
Suzuki opened Japan's acount in the competition with the first goal against Belgium, and has been unlucky not to add to his tally since then.
A pacy, athletic striker, with a powerful shot he has epitomised the commitment that has taken Japan into the second round.
Injuries and suspension to Alpay have denied Turkey the chance to field a settled defence, which could provide an opening for Korkmaz.
Despite a lack of pace, 33-year-old Korkmaz has earned a reputation as an effective man marker.
Gunes uses him selectively, and he might be asked to do a job on Suzuki.
But Suzuki's pace, and sheer appetite for work could eventually take its toll on the ageing Korkmaz.