Chelsea legend Tommy Langley believes that the Blues losing to Tottenham Hotspur at White Hart Lane will have given Antonio Conte the perfect platform to demand reinforcements from the board.
Conte's men headed to White Hart Lane on a 13-match winning run in the Premier League, but went down 2-0 to Mauricio Pochettino's men after Dele Alli scored a brace.
Chelsea have banked between £52m and £60m by selling Oscar to Chinese Super League side Shanghai SIPG and Langley feels the defeat at Spurs gives Conte the perfect reason to demand funds are released to strengthen the squad.
However, the Blues legend warned that doing business in January is tough and called for Chelsea to be selective in their spending.
"This for me is the worst time to be buying players because it's normally panic buys and nine times out of ten you end up getting something you don't want", Langley said on Chelsea TV.
"However, if the right player becomes available, this [against Spurs] will give Antonio Conte fuel on the fire to say to the directors we got exposed in this area and this area and I need people to come in.
"Don't change for change's sake, but perhaps freshen up with quality bodies – but can you get them for the right money? That's the key", he added.
Chelsea do not have the chance to instantly bounce back in the Premier League as the FA Cup is on their agenda this coming weekend, with League One outfit Peterborough United due to visit Stamford Bridge.