Task: Text Categorization
Input (English): Context: Henrik Ernst (born 2 September 1986) is a German footballer playing for RB Leipzig.Ernst made his professional debut on 17 October 2009 when he came on for the final five minutes of Hannover 96's away game at Eintracht Frankfurt in the Bundesliga. However most of his appearances have come for Hannover's reserve team Hannover 96 II.
Question: The document can be classified to which topic? 
Options: 1)Plant, 2)Album, 3)Athlete, 4)WrittenWork, 5)Animal
Output (English): 3