Ali Al-Hamadi, Chris Forino and David Wheeler were on target for the Blues in a 3-2 practice match over a Brentford XI at the Bees' training ground on Monday afternoon.
The Premier League outfit featured a host of familar names, and twice equalised through Yoane Wissa, before Wheeler struck a last-minute winner after racing clear.
Al-Hamadi's goal came after 25 minutes, poking beyond Jonas Lossl from just inside the area, while Forino - a former Brentford youngster - fired home through a crowd of players in the second half.
Brentford XI: Lössl (Fernández 45); Roerslev (Maghoma 75), Zanka, Sørensen, Stevens; Onyeka, Baptiste, Jensen; Fosu, Ghoddos, Wissa.
Wycombe XI: Przybek (Dickinson 45), Grimmer, Jacobson, Wheeler, Young, Kaikai, Hanlan (Trialist 70), Wakely, Al-Hamadi, Leathers, Forino (Trialist 60).