A youthful Britain squad won two team sprint bronze medals on the first day of the track World Cup in Mexico.
Victoria Williamson, 20, and 18-year-old debutant Dannielle Khan beat a French duo in the race for third.
In the men's race, John Paul, Callum Skinner and Lewis Oliva were awarded third place when opponents France were disqualified for an illegal changeover.
Olympic and world team pursuit champion Dani King was 14th in the scratch race; the men's team pursuit squad were 13th.
The quartet featured Jacob Ragan, Oliver Wood and Chris Latham, who were all making their World Cup debuts, alongside 19-year-old Jon Dibben.
Ragan, a British Cycling Olympic Academy Programme rider, also finished 12th in the 30km points race.
Day two of the third and final World Cup event of the season features the women's individual sprint, omnium and 500m time-trial, plus the men's individual pursuit, men's keirin, men's kilo.