Complex sentence: Bassist Mark Stoermer will not be performing with the band during the Asian leg of the tour, believed to be as a result of a back injury he tweeted Everything is alright, just need to spend this time at home.
Split into simpler sentences: Bassist Mark Stoermer will not be performing with the band during the Asian leg of the tour, believed to be as a result of a back injury. He tweeted Everything is alright, just need to spend this time at home.