const clubs = {
    cr7: ['mu', 'juve'],
    ibrahimovic: ['AC Milan', 'InterMilan'],
    Bale: ['Tottenham', 'Roma']
}

function test(player) {
      return clubs[player] || [];
}

console.log('result 3--', test('Bale')); // "result 3--", ["Tottenham", "Roma"]