Simplify the following text for a Grade 7 native English-speaking person.
Original: Andoni Goikoetxea Olaskoaga ( born 23 May 1956 in Alonsotegi , Biscay ) , Goiko for short , is a retired Spanish footballer and a current coach .
Simplified: Andoni Goikoetxea Olaskoaga ( born 23 May , 1956 ) is a former Spanish football player .