Chelsea are keeping their Premier League rivals on their toes with a string of surprising transfers ahead of Xabi Alonso’s first season in charge at Stamford Bridge. Henderson free to join Chelsea from BrentfordJordan Henderson (Image credit: Getty Images)Chelsea are eager to add cost-effective experience and leadership to their ranks. Jordan Henderson (Image credit: Ryan Pierse/Getty Images)35-year-old Welbeck is shining in the twilight of his career. Danny Welbeck (Image credit: Getty Images)Both Henderson and Welbeck are expected to be part of Chelsea’s pre-season tour of Hong Kong. Chelsea’s Premier League campaign gets underway down the road at Fulham on Monday, August 24.