By Simon Mullock Kieran Trippier has warned Newcastle that they will suffer even more pain if they start to feel sorry for themselves. Toon boss Eddie Howe has been forced to play the same 10 outfield players for four successive games after being hamstrung by a crippling casualty list – and his team conceded three times in the last 11 minutes when they were beaten by Everton on Thursday night. Now they travel to meet a Tottenham side that hasn’t won for five matches after an impressive start to the season. And former Spurs favourite Trippier, who was at fault for two of Everton’s goals at Good…