PHP regex vtrelay

I have this PHP regex string:
preg_match('/<p><a href="TR\?fr_id=60186\&amp;pg=teamlist">([0-9]{1,}) teams<\/a> and <a href="TR\?fr_id=60186\&amp;pg=topparticipantlist">([0-9]{1,}) participants<\/a> have raised <span id="tr-greeting-fundraisingStats">(.*)<\/span><\/p>/im', $file, $matches);

I want to grab the numbers from this string:

<p><a href="TR?fr_id=60186&amp;pg=teamlist">221 teams</a> and <a href="TR?fr_id=60186&amp;pg=topparticipantlist">1,001 participants</a> have raised <span id="tr-greeting-fundraisingStats">$23,323.16</span></p>

I think the comma in the 1,001 is messing it up.