Should local governments give financial support to sports teams?

Brussel is expected to announce a decision to force Real Madrid and other European football teams to repay their illegal subsidies. Some of these subsidies have been enjoyed by certain football teams for decades. Subsidies are usually used as a tool to correct market failures. Sports teams are not public goods as watching football games is excludable and rivalrous, which oppose to the two properties identifying public goods. Some people may argue that sports teams have some positive externalities and need to be supported by local governments. Sports teams create employment and encourage the local population to exercise and maintain healthy, provide entertainment and pride as well. These claims could be all true; however, the key point here is about opportunity costs. Watching sports matches are one of many entertaining ways. There are many other choices that can have similar effects as sports teams. Local governments can use the money spent on sports clubs in other fields which can generate more benefits for the local population, such as education, health care, public sports centers and etc. Moreover, sports teams also ask financial supports from local governments to build new stadiums that they claim new stadiums can provide places for the local population to do exercise, which is not always true.  In addition, sports clubs do not necessarily need financial supports from local governments as they can be financially well managed if they want. Some have been recognized by financial institutions and listed in stock markets. This should be seen as positive examples. However, some sports clubs have been used as tools of big firms from other industries for the purposes of public images, tax efficiency and etc. In this case, sports clubs will never be managed as normal firms that carefully calculate their costs and profits. To conclude, I think that local governments should not spend too much on sports teams or even not at all.