Kate Middleton all smiles as she takes in Wimbledon’s final match

Kate Middleton, Princess of Wales, was all smiles Sunday as she attended the men’s singles final at Wimbledon, widely known to be one of the sporty princess’ favourite athletic events.

It marks the second public appearance by Middleton this year as she undergoes treatment for an undisclosed type of cancer and she made the outing a mother-daughter date, bringing along her…