David Luiz trained separately from Chelsea’s first team on Wednesday, with Arsenal understood to be pushing to sign the Brazil defender. The 32-year-old was at Chelsea’s Cobham training ground, but it is understood he did not take part in the main training session with Frank Lampard’s men. Luiz signed a new two-year contract in May, with Chelsea straying from their standard practice of handing one-year extensions to players aged 30 or older. David Luiz, pictured, is thought to be a target for Arsenal (Donall Farmer/PA) Arsenal boss Unai Emery is expected to push to lure Luiz away from Stamford Bridge before the transfer window shuts at 5pm on Thursday. New Chelsea boss Lampard preferred Kurt Zouma and Andreas Christensen for his centre-back pairing in the final pre-season friendly at Borussia Monchengladbach last weekend. Lampard has brought Zouma back into the first-team fold after the 24-year-old France defender spent last term on loan at Everton. Kurt Zouma, pictured, is in the frame to feature regularly at Chelsea this season (Adam Davy/PA) Luiz enjoyed a central role under Maurizio Sarri last season, as Chelsea secured a third-place Premier League finish and lifted the Europa League title. But now Zouma and Christensen could be in line to pair up for Sunday’s trip to Manchester United in Chelsea’s opening league fixture. Topics Arsenal, Chelsea, David Luiz, Premier League, Arsenal, Chelsea Chelsea still have long way to go, says David Luiz David Luiz targets trophy clean sweep for Chelsea Luiz: Trophyless season would be ‘s**t’ Chelsea are in the title race – David Luiz Lennon wants to strengthen his Celtic squad as Tierney prepares to leave City complete Joao Cancelo deal as Danilo heads to Juventus Djibril Sidibe joins Everton on season-long loan James Forrest secures draw for Celtic in Romania Victor Camarasa returns to the Premier League with Crystal Palace Arseblog: 5 things I think will happen to Arsenal in 2019/20 Ranked! Every Premier League manager by their job security in 2019/20 PSG have offered Neymar to Manchester United – and here’s what they want The 11 most desperate deadline day panic buys in Premier League history David Preece: What I learned from working first hand with Ravel Morrison at Ostersund