NBA Finals: Boston Celtics beat Dallas Mavericks 106-88 to win record 18th title

Sam Harris, BBC Sport JournalistWith the best regular season and a fine play-off run, the Boston Celtics have earned the right to hang banner 18 in the rafters.Their Finals performance had a hiccup in game four with a blowout loss, but they found a way to get the job done at home.The triumph is the culmination of a lot of hard work from a team who have developed a strong mentality, and the result too of some bold front-office decisions.At the forefront is franchise star Jayson Tatum, who has faced intense scrutiny and criticism during his bid to end a long personal wait for a championship….