The U.K.'s FTSE 100 is set to open slightly lower, while futures in France's CAC index and Italy's FTSE MIB were seen 0.1% higher, according to IG. Germany's DAX index was seen little changed from the previous session.LONDON — European markets are expected to open mixed on Friday as investors react to a U.S. tech sell off.European stocks closed lower on Thursday, with most sectors and major bourses ending the session in negative territory after a busy earnings day. Drinks giant Diageo was one of the biggest ...