question: neill left central coast mariners in 2017, which league did he join side sydney united?
table.cells: club season league cup continental total
table.cells: division apps goals apps goals apps goals apps goals
table.cells: central coast mariners 2013-14 a-league 0 0 0 0 0 0 0 0
table.cells: 2014-15 8 0 1 0 0 0 9 0
table.cells: 2015-16 21 1 1 0 0 0 22 0
table.cells: 2016-17 17 0 1 0 0 0 18 0
table.cells: mariners total 46 1 3 0 0 0 49 1
table.cells: sydney united 2017 national premier leagues nsw 1 0 0 0 0 0 1 0
table.cells: career total 47 1 3 0 0 0 50 1