uk.eurosport.yahoo.com
Bafetimbi Gomis grabbed the opener following a mistake by Debrecen keeper Djordje Pantic before Michel Bastos added the second a minute before half-time.
Substitute Miralem Pjanic and Aly Cissokho both found the net in the second half to leave the hosts on 13 points at the end of the group phase, two behind table-toppers Fiorentina who beat Liverpool 2-1 at Anfield.
Lyon had already guaranteed their spot in the last 16 prior to this encounter, but the opportunity of finishing top of the group and therefore avoiding other group winners in the next round provided them with their motivation.
Debrecen, who were Group E's whipping boys having failed to take a point from any of their encounters to date, provided scant opposition.
Having conceded liberally in their five previous games, the Hungarian champions were defensively suspect and it did not take long for Lyon to expose their weaknesses.
Source: uk.eurosport.yahoo.com
