Michael Vaughan: I know how Graeme Swann feels. He will fear this could be the end of his career I had to be very disciplined and professional, particularly when approaching recovery from my last knee op. One of the things I found was that I could not drink alcohol. The more you drink the more you harm the recovery of the joint. More inflammation forms and it takes longer to heal. Every pint costs a week. It can be tough but Swann has to stay positive and trust the medical team. Rehab is all about repetitive motion and boring exercises. It can get very tedious going to the same gym and seeing the same faces every day. But unfortunately you have to go through it. Once you emerge the other side you feel better for it because a period away from the game makes you feel hungrier. It reminds you why you love it so much. When you are on tour all the time and playing for England in all different formats, which Graeme does, it can become a little bit boring. But when it is snatched away from you by injury, you realise how lucky you are and what a great life it is to play for England. England will be keen to have Swann back and he will be desperate to bowl again and prove he has a future - but patience is important. Rushing back early for something like the Champions Trophy just because Swann will be desperate to get out there and play would be an error. It is more important to ensure that he is fully fit for July 10, Trent Bridge - the first day of the Ashes series. Losing Swann for the Ashes would be a massive blow. He is attacking, very smart and the best English spinner I have seen during my time watching and playing for England. It is only after he retires that we will look back and realise what a great bowler he was. For years, we will talk about the Swann and James Anderson era. Monty Panesar is very reliable but he is not a Graeme Swann, who dismisses great players on first-day wickets, let alone on days four and five. England will also miss his vibrancy and character. He is one of those jovial spirits who says what he thinks. Alastair Cook will miss his expertise on the pitch and that joyful spirit on tour is very hard to replace. It is a small but important factor that England now have a completely different slip cordon from when they won the Ashes two years ago. They held every catch in that series. Andrew Strauss at first slip, Swann at second and Paul Collingwood at third was a formidable set of grabbers. They are gone and it takes time for a new line up to bed in. Australia are going through a torrid time in India and Swann's injury is the best news they have had for a while, given the way they have played off-spin in the past. Look back at the past 20 years and if any spinner has caused an Aussie team problems, it has generally been an off-spinner. As a captain and coach you want your tail to hold a bat. England have been lucky in recent years sometimes to have Swann batting at 10, Stuart Broad at nine and Tim Bresnan at eight. All three are capable of Test match fifties. I remember watching England when they had four No11s. But England should not pick bowlers on how many runs they can grind out. You just need to pick the best four bowlers. Clearly, Andy Flower will not want to look at his eight, nine and 10 and fear they can be blown away in 20 minutes. But even without Swann, England's tail can make runs. Broad is a better batsman than we have seen in recent times, Finn can bat, Anderson can dig out 15 or so and Monty is no longer the mug he used to be.