Conseguir resultados/estatísticas ao vivo da NFL para ler e manipular?

Temporada Regular: http://www.nfl.com/liveupdate/scorestrip/ss.xml

Pós-Temporada: http://www.nfl.com/liveupdate/scorestrip/postseason/ss.xml

<?php
require('includes/application_top.php');
$week = (int)$_GET['week'];

//load source code, depending on the current week, of the website into a variable as a string
$url = "http://www.nfl.com/liveupdate/scorestrip/ss.xml"; //LIVE GAMES

if ($xmlData = file_get_contents($url)) {
$xml = simplexml_load_string($xmlData);
$json = json_encode($xml);
$games = json_decode($json, true);
}

$teamCodes = array(
'JAC' => 'JAX',
);

//build scores array, to group teams and scores together in games
$scores = array();
foreach ($games['gms']['g'] as $gameArray) {
$game = $gameArray['@attributes'];

//ONLY PULL SCORES FROM COMPLETED GAMES - F=FINAL, FO=FINAL OVERTIME
if ($game['q'] == 'F' || $game['q'] == 'FO') {
    $overtime = (($game['q'] == 'FO') ? 1 : 0);
    $away_team = $game['v'];
    $home_team = $game['h'];
    foreach ($teamCodes as $espnCode => $nflpCode) {
        if ($away_team == $espnCode) $away_team = $nflpCode;
        if ($home_team == $espnCode) $home_team = $nflpCode;
    }
    $away_score = (int)$game['vs'];
    $home_score = (int)$game['hs'];

    $winner = ($away_score > $home_score) ? $away_team : $home_team;
    $gameID = getGameIDByTeamID($week, $home_team);
    if (is_numeric(strip_tags($home_score)) && is_numeric(strip_tags($away_score))) {
            $scores[] = array(
                'gameID' => $gameID,
                'awayteam' => $away_team,
                'visitorScore' => $away_score,
                'hometeam' => $home_team,
                'homeScore' => $home_score,
                'overtime' => $overtime,
                'winner' => $winner
            );
    }
  }
}

//see how the scores array looks
//echo '<pre>' . print_r($scores, true) . '</pre>';
echo json_encode($scores);

//game results and winning teams can now be accessed from the scores array
//e.g. $scores[0]['awayteam'] contains the name of the away team (['awayteam'] part) from the first game on the page ([0] part)

$XML = "http://www.nfl.com/liveupdate/scorestrip/ss.xml";
$lineXML = file_get_contents($XML);
$subject = $lineXML;
//match and capture week then print
$week='/w="([0-9])/';
preg_match_all($week, $subject, $week);
echo "week ".$week[1][0]."<br/>"; 
$week2=$week[1][0];
echo $week2; 

//capture team, scores in two dimensional array  
$pattern = '/hnn="(.+)"\shs="([0-9]+)"\sv="[A-Z]+"\svnn="(.+)"\svs="([0-9]+)/';
preg_match_all($pattern, $subject, $matches);

//enumerate length of array (number games played)
$count= count($matches[0]);

 //print array values
 for ($x = 0; $x < $count ; $x++) {
         echo"<br/>";
         //print home team
         echo $matches[1][$x],"   ",
         //print home score
         $matches[2][$x],"   ",
         //print visitor team
         $matches[3][$x],"   ",
         //print visitor score
         $matches[4][$x];
         echo "<br/>";

       }

Recomendo o registo em http://developer.espn.com e ter acesso à sua API JSON. Demorei 5 minutos e eles têm documentação para fazer qualquer chamada que precises.