Jessica Ennis-Hill back with a bang but tendon a concern for Moscow

• Ennis-Hill throws personal best of 48.33m at Loughborough• Injury fears cloud Olympic champion's buildup to worlds After five delayed comebacks, Jessica Ennis-Hill returned to competitive action with a bang by throwing a personal best in the javelin in her first appearance of the summer, but then admitted she was still troubled by an injury to her left achilles tendon as she prepares for next month's world championships in Moscow. Ennis-Hill, who has only competed once in 352 days since wi...