I have the category "Tennis" in the section "News", now I need to find a link where it shows all the news in the Tennis category on the user front end (not admin panel), I already tried the link

index.php?option=com_content&view=category&layout=blog&id=1&Itemid=50&lang=en

but this will show all the news articles and just can't figure out how to restrict the link to Tennis category only?

Note: adding "&category=Tennis" to the link does not help.

please help ( i am using joomla 1.5.12)