Frank Lampard will lock horns with former boss Jose Mourinho in a Premier League London derby. © AFP Frank Lampard will lock horns with former boss Jose Mourinho in a Premier League London derby this weekend as second-placed Leicester City seek to take advantage of Liverpool’s absence at Manchester City. Elsewhere, out-of-form Arsenal travel to Everton and Ole Gunnar Solskjaer takes his Manchester United side to bottom club Watford. League leaders Liverpool, who have a 10-point lead at the top of the table, are away at the Club World Cup in Qatar. AFP Sport picks out some of the key talking points ahead of the weekend’s Premier League fixtures.Master vs apprenticeWhen Jose Mourinho took over as Tottenham boss last month, his side were 12 points behind Frank Lampard’s Chelsea and looked out of the running for the top four.But Spurs will leapfrog their London rivals into fourth place in the Premier League if they come out on top on Sunday in a match pitting the grizzled Portuguese veteran against one of his key players during their time together at Stamford Bridge.It is not the first time the pair have locked horns from opposing dugouts. Lampard came out on top last…