So, first details coming out about the what, when and where of pre-season.
1st training camp, Austria, 10-21 July
2nd training camp, Germany 24th July - 4 August.
Only matches confirmed yet are back-to-back game against Werder Bremen 28+29th July for the 'Betway Cup'.
An interesting approach ;hmmhttp://www.whufc.com/news/articles/2017/june/13-june/hammers-face-werder-bremen-betway-cup
20 July v Fulham (in Austria)
28 July} Betway Cup, 2 legs against Werder Bremen
1 August v Hamburg (Germany)
Plus a West Ham XI play on 18 and 22 July (Colchester and Dagenham, respectively).