Former Chelsea star Pat Nevin has warned the club not to make a hasty signing on transfer deadline day.

The Blues have yet to sign anyone this month, with Frank Lampard still desperate to bolster his attacking front.

Nevin told the club's official website: "The last day of the window has much in common with those Black Friday sales. The moment you get back in the house having half emptied your bank account, you realise those alternative purchases you panic-bought were nothing like the single thing you had your heart set on originally.

"This is why it is important to have a clear head and not get caught up in the madness this week. Have a plan and stick to it if you can."

However, the Scot was supportive of the club's interest in AC Milan striker Krzysztof Piatek.

He added: "There have been plenty of reports in the ether regarding Chelsea, from [Wilfried] Zaha at Palace to Piatek at Milan and who knows how serious or informed any of these stories are.

"Most of the names mentioned have been impressive and obviously well-researched by the club's people.

"Piatek would have been one of my first options a year ago, so I believe they are 'all over' the available players in the market that Frank Lampard has been interested in."