LONDON : Newcastle United manager Eddie Howe urged caution despite a 2-0 victory at Arsenal on Tuesday, putting his in-form side within touching distance of a place in the League Cup final. Goals by Alexander Isak and Anthony Gordon either side of halftime in north London gave Newcastle a seventh successive win in all competitions and put them in the driving seat for the second leg at St James' Park in February. On all eight occasions since 1987-88 that an away team held a two-goal lead from