small blurb from BA about them when previewing the Cuban team for the series a few weeks ago...
"After some drama last summer where neither of them played in the Pan American Games, both Gurriel brothers will join the Ciego De Avila team in the Dominican Republic as reinforcements. Yulieski, 31, is still the best player in Cuba, hitting a ridiculous .494/.586/.861 in 215 plate appearances with 14 home runs, 37 walks and just two strikeouts. Younger brother Lourdes, 22, is also one of the top five players in Cuba right now in terms of major league potential. He’s hitting .340/.400/.561 with 10 home runs, 19 walks and 23 strikeouts in 237 plate appearances. While his major league value would be highest as an infielder, Lourdes Jr. has mostly played left field this season and is listed as an outfielder on the Caribbean Series roster."