Luca Staeheli will advance against Andrey Chepelev in Sion, vaulting into the next round and forcing a reshuffle of the lower half of the draw. The 26-year-old Staeheli, ranked #521, will lean on a career 59.8% win rate with 119 wins from 199 matches to push past 27-year-old Chepelev. The match was…