LONDON Welsh have signed backs Dante Mama and Tom Luke on short-term deals.

The pair, who were at Doncaster Knights last season, bolster Welsh’s squad ahead of Saturday’s Greene King IPA Championship opener against Bedford Blues at Saracens’ Allianz Park, Barnet.

Zimbabwe-born Mama, 23, can play full back, wing and centre, while 30-year-old Luke is a centre.

Both appeared in Welsh’s pre-season fixtures against the Scarlets and Henley Hawks.

The Exiles are among the favourites for promotion.