Demba Ba insists his arrival at Chelsea has done nothing to affect Fernando Torres's position as the main striker at Stamford Bridge.

Ba made the perfect start to his Blues career following his STG7.5 million ($A11.6 million) move from Newcastle United, scoring twice in the 5-1 FA Cup third-round victory at Southampton while Torres remained on the bench.

Torres is expected to be restored to the line-up when English Premier League rivals Swansea City visit west London for the first leg of the League Cup semi-final on Wednesday, although Chelsea manager Rafael Benitez could pair the two strikers from the start.

Ba's impact means Chelsea immediately appear much less reliant on the inconsistent Torres and he may well challenge the Spanish international's position as the first-choice forward in the longer term.

But the Senegal striker has made it clear he sees Torres as the senior partner as he attempts to establish himself at his new club.

"I just want to enjoy my football. It's not about pressure - it's about playing a game I like, and that's what I'm doing," Ba said.

"I'm here to help the group and the team; it's not about taking the position of someone else. I know Fernando is the main man. I've just come, I will learn from people and I will learn from him as well because his history is much bigger than mine."

And the forward claims he has already benefited from playing in front of European champions Chelsea's playmakers, including Juan Mata and Frank Lampard.

A convincing victory in the first leg will turn thoughts towards a place in the Wembley final and divert attention from Lampard's contract situation.

Steve Kutner, the England midfielder's agent, insisted Lampard, 34, has been told he will definitely not be offered a new deal.

Swansea were held 2-2 by Arsenal in the FA Cup but manager Michael Laudrup opted to rest a number of key players in that game, placing Michu and Pablo Hernandez on the bench and omitting Ashley Williams and Angle Rangel from the squad.

The West Australian

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