(Reuters) -Britain’s four-times Olympic champion Mo Farah said on Tuesday he expects 2023 to be the final year of his career, after confirming he will give his home London Marathon “one more shot” in April. Farah, who withdrew from last year’s event due to injury, has run the London Marathon three times with a best finish of third in 2018, the same year he won the Chicago Marathon. “I’m not going to go to the Olympics and I think 2023 will probably be my last year,” said Farah, who turns 40 in March. “It has been an amazing career and, for me, to take part in London Marathon is a big deal. “I …