The Honduran international is set to officially join the Latics from MLS club Sporting Kansas City when the transfer window opens in January and the Spanish tactician is excited to have some more flexibility in his squad.
"The highlight of his development was with Honduras during the Olympics Games in London this summer with some excellent performances against Spain and Brazil," he told the club's official website of the 26-year old midfielder.
"He is someone who physically is really capable and has a gifted left foot. Having someone with such a good left foot gives a balance to the squad because most players are primarily right-footed.
"He's developed his tactical awareness and has learned how to play in different systems.
"Roger can play in any position in the midfield and can even play out in a wide left position, so we are delighted to capture a player with such versatility and stature."