LONDON (Reuters) -Caroline Weir struck a superb late winner as Manchester City beat Manchester United 1-0 in the Women’s Super League to keep alive their slender title hopes on Sunday, while Tottenham Hotspur cruised past Birmingham City. Weir, on as a substitute, looked up and chipped United’s England goalkeeper Mary Earps from 25 metres in the 81st minute to finally reward City’s domination of the derby. It also continued her remarkable record against United as she has now scored in all three home Super League games against them since City were promoted. City had created the better chances w…