By Alessandro Schiavone in Leverkusen Kai Havertz and Piero Hincapié may get the chance to visit their old club in the last-16 of the Champions League after Bayer Leverkusen progressed past Olympiacos. A goalless home draw was enough for the German giants to seal a place in the next round after a pair of Patrik Schick goals in the first leg put them in pole position for this one. On an uneventful night at BayArena , where Blaswich replaced crocked ex-Brentford goalie Mark Fle