A glass holding Derdiyok's toothbrush fell and shattered on his bathroom
floor, opening a cut on the 23-year-old's foot that required seven stitches.
Derdiyok will now miss Saturday's match with Stuttgart as well as a game with
Bundesliga co-leaders Borussia Dortmund.
The Swiss forward, who leads Leverkusen with nine goals in all competitions,
is also likely out for the club's Champions League first-leg match against
Barcelona on Feb. 14.