Pakistan’s most successful Test captain, Misbah-ul-Haq is considering prolonging his career until the tour of Australia later this year. Pakistan will undertake a long series of Test matches starting in England in July followed by series against West Indies, New Zealand and Australia.”If I manage to play the England series then I should also play the upcoming West Indies, New Zealand and Australia series as well mainly because they are at close gaps. Although I am certain about my will of playing all the series it will also be subject to my form and fitness as if it goes down then I will walk away rather rather than being a burden on the team,” Misbah was quoted as saying by ESPNCricinfo.Misbah also emphasised on his decision to extend his career before bidding farewell to cricket.”All you think is positive and I want to contribute and this is why I am planning to play a certain length of time so that youngsters are ready to take my place. I hope by the time I leave, the Pakistan Test team is in safe hands and standing solidly on their own feet. If the team remains intact, when a new captain replaces me it shouldn’t feel any different,” Misbah said.Misbah has led Pakistan in 42 Tests and has overseen 20 victories, 11 losses and 11 draws with a win record of 47 per cent.”As a captain and a player you cannot achieve everything but I am satisfied with the result I have got for Pakistan so far. Although I am disappointed that I couldn’t do well with the limited-overs team I believe I have achieved a lot,” Misbah said.advertisementCalf injury not a worryThe 42-year-old Misbah is leaving no stone unturned to get 100 percent fit prior to the gruelling four-match Test tour of England, starting July 14.He has recovered from a calf injury he suffered in January and is planning to be a part of the Pakistan A team’s tour to get acclimatised to the English conditions.”I am fine and hopefully this injury won’t be an issue ahead. Unfortunately I didn’t get an opportunity to play county cricket but I am planning to go England with few of our boys before the tour to play some practice matches and adapt in the condition there.”I have the one-day cup, conditioning camps and A-team tour ahead so I am looking forward. It has been very tough being idle but I made my mind up to play the England series,” Misbah added.