England World Cup winners Katy Daley-Mclean, Sarah Hunter, Marlie Packer and Vicky Fleetwood are among the 28 players to be awarded full-time contracts by the Rugby Football Union.
After a challenging start to the sevens series in Dubai, Wales bounce back with victories over Zimbabwe and Japan.
Wales' inexperienced sevens side will come back stronger after a winless first day in Dubai, says head coach Richie Pugh.
Some Wales players will be "thrown into the deep end" against champions New Zealand in the World Rugby Sevens Series.
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England women score three first-half tries on their way to a 24-19 victory over Canada to secure a bronze medal in the women's rugby sevens.