Philadelphia Phillies general manager Ruben Amaro Jr. on Friday opened the door to trading All-Star left-hander Cliff Lee.

Amaro said he owed it to the organization to entertain offers for Lee. ESPN’s Jerry Crasnick citing baseball sources reported that teams are making a late push for the 2008 American League Cy Young Award winner as the Wednesday nonwaiver deadline approaches.

"Although we don't have any desire to move a guy like that because we view him as someone who will be key to our future I am a businessperson as well and I'll be a good listener” Amaro told Crasnick in a telephone interview.

It's not clear which teams have been in contact with Amaro about Lee according to Crasnick.

Lee would be the top commodity on the trade market. He has been the Phillies’ best starter this season with a 3.05 ERA and a 1.01 WHIP in 20 starts. He has averaged more than seven innings per start.

The 34-year-old will be an expensive pickup both in terms of prospects and salary. He is guaranteed more than $70 million through the 2015 season (more than $8 million this year $25 million salaries in 2014 and 2015 and a $12.5 million buyout of a club option for 2016). It's not clear how much of that money the Phillies would pay.