Code to parse injuries and count for each player from: http://www.physioroom.com/news/english_premier_league/clubs/1/arsenal_injuries.html

parse_injuries.js

var players = {}
$("table#clubplayer > tbody > tr:not(:first-child) > td:first-child > a").each(function(){ 
	console.log(players);
	var player = $(this).text();
	if (player in players){
		players[player] += 1;
	}
	else{
		players[player] = 1;
	}
})

var sortable = [];
for (var p in players)
      sortable.push([p, players[p]])
sortable.sort(function(a, b) {return b[1] - a[1]})

for (var i = 0; i < sortable.length; i++) {
    console.log(sortable[i]);
}