To dream of tennis represents conflict over issues that you are rejecting or want someone else to deal with. A back and forth conflict over responsibility. A conflict over the superiority of different agendas. Fighting over “whose ideas are better.” A respectable conflict with two people trying to avoid jealousy.
To lose a tennis match represents giving in to a problem or to something you thought was a bad idea. It may also reflect an addiction you couldn’t fight hard enough. Accepting jealousy that someone else had a better idea than you did. Accepting a superior agenda. Accepting responsibility for a problem when you didn’t want to