Per Ian Rapoport twitter account. The colts have contacted the Browns on some level about Alex Mack. I think having a very good center is very important.The center position is very crucial to setting up the offensive line duties and audibles. He is very good at run and pass blocking. I think that adding Alex Mack to the offense is the missing link. I think adding him is way more important than adding a number one Wide Receiver. I hope we get him.