By Daniel Alvarenga ALMANCIL, Portugal, Nov 18 (Reuters) - Despite having only three professional players, UEFA new boys Gibraltar are sowing the seeds to make sure they will not be subject to humiliating defeats, Gibraltar FA Chief Executive Officer Dennis Beiso said. Ahead of an historic UEFA debut against Slovakia at Portugal's Algarve stadium on Tuesday (1830 GMT), Beiso said the tiny Iberian enclave of 30,000 people will be brave but realistic in its ambitions. These days it's far tougher to beat them and certainly they are never embarrassed in the field of play." The rocky territory became UEFA's 54th member in May, following a 14-year court marathon against Spain's objections to their football ambitions as a national side. Gibraltar has about 1,400 players, two divisions and 20 teams. More...