Ole Gunnar Solskjaer is aiming to make significant improvements to his squad to turn United into Premier League title contenders, but it has been a slow start to the summer.United missed out on target Jude Bellingham to Borussia Dortmund and the saga regarding the German club's Jadon Sancho looks set to rumble on throughout the summer.Sancho is United's priority target and the club were confident of finally signing their man, but Dortmund officials remain adamant that he will be staying at