One key transfer to watch for every Premier League team in 2016-17

Will newly acquired Henrikh Mkhitaryan have a major impact for Manchester United in 2016-17? no_source

With the Premier League awash in television contract money, the transfer market has not been quiet this summer. Plenty of new recruits have landed in advance of the new season, and there is no doubt that much more trading will take place before the transfer window shuts on Sept. 1. For now, in advance of the big kickoff on Aug.13, let's look at a key signing for each club and speculate how he will fit into his new environment: