London Wasps have commenced their Challenge Cup campaign with a bonus-point victory over Newport Gwent Dragons at Adams Park.

The hosts won the game 38-25, scoring four tries in the process.

However, it was the Dragons who started the encounter the better of the two teams, outside centre Adam Hughes scoring with a try.

That lead lasted for just three minutes, though, as Jack Wallace went over for the Wasps.

Fabio Staibano and Billy Vunipola added two more tries for the hosts before Owen Evans went over for the Dragons.

Wasps went into the break with a 25-15 lead and scored two more tries through Joe Simpson after the interval.

Fly-half Nicky Robinson converted three of his side's tries and kicked four penalties in the match, as Wasps bagged a comfortable win on Saturday.