Playmaker Giovani came off the bench at half-time to net both goals in the 2-0 win over
But Tena believes the 23-year-old, signed by
He made only a handful of appearances under
Tena said: "Giovani proved he is getting better football-wise. He made an impact again from the bench and he has done well throughout this competition from the bench.
"He showed great quality. Sometimes we don't finish but fortunately today we took two of the chances thanks to Giovani out of the many we made.
"Giovani had to improve physically because he came from vacation into the group after everyone else.
"But he is doing well, working in morning and afternoon training sessions with the physical coaches.
"If he keeps improving, he will get a chance [to start]."
But Tena added: "He definitely needs to find his rhythm. He has the potential to achieve things and it would be better if he had that rhythm at club level.
"Unfortunately he doesn't get that many minutes on the pitch at
"It will be better if he played more at club level and then he can give more to
London 2012 has given women's football in the UK an 'unprecedented platform' on which to create a lasting legacy, according to the Football Association's head of national game Kelly Simmons.