Shadow Business Secretary Chuka Umunna has declined to rule out a future Labour leadership battle.
During an event hosted by Channel 4 News at the Labour conference, he insisted it would be "arrogant" to say he would be the right man for the job but raised the prospect of there being a vacancy in "two or three years"' time.
The Streatham MP also said he was "ashamed" of how little the party paid its staff.
He argued Labour must be "pro-business and enterprise" as he defended the "dynamism" of the City.
When asked if he hoped to reach Labour's top job Mr Umunna said: "I feel so uncomfortable with these questions.
"I just think there is something very unhealthy about pre-supposing you alone would be the best person to make very big decisions involving life and death decisions for some people in this country at some point in the future."