BOSTON — David Ortiz won’t be lacking in artwork as he enters retirement. The Boston Red Sox designated hitter began the final regular-season series of his career Friday night at Fenway Park against the Toronto Blue Jays. Ahead of that contest, the soon-to-be-retired slugger was presented with a special gift during a pregame ceremony. Ortiz received a painting by world-renowned artist Peter Max, who has painted works for six U.S. presidents, in a special presentation from Foxwoods Resort Casino, the Red Sox Foundation and NESN.