Would the Google MLB scoreboard gadget work?
You can customize it and get the embed code by clicking the Embed this gadget link
http://www.gmodules.com/ig/creator?synd=open&url=http%3A//hosting.gmod ules.com/ig/gadgets/file/117126316695616293093/mlbscoreboard.xml&pt=%2 6context%3Dd%26type%3Dgadgets%26synd%3Dig%26lang%3Den%26.lang%3Den%26c ountry%3Dau%26.country%3Dau%26start%3D0%26num%3D1%26objs%3D&sn=&lang=e n
I'd think this would be more an AJAX function unless you will be doing the updates. It needs to call to a source (that is updating) and the display the called info where you want it. http://stackoverflow.com/questions/700782/automatically-update-scorebo ard-without-refresh-page
You could also use an RSS feed for something like this.
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