Villarreal forward Samuel Castillejo and Genoa midfielder Diego Laxalt have joined AC Milan shortly before the close of Italy's transfer window, the Serie A club said on Friday.
Milan added that Carlos Bacca and Gianluca Lapadula have signed for Villarreal and Genoa respectively.
Castillejo, 23, joined Villarreal in 2015 from Malaga and made 30 appearances in La Liga last season, scoring six goals.
Official Announcement: Samuel Castillejo and Diego Laxalt ⬇https://t.co/NJQqGEFIPB— AC Milan (@acmilan) August 17, 2018
Uruguay international Laxalt, capped 10 times, made 32 appearances in Serie A last season, scoring three times.
Laxalt, 25, has been a regular in Italy's top flight since 2013, having previously played for Empoli and Bologna on loan from Inter.
Milan were due to host Genoa in their first league game of the season on Sunday. However, the match was postponed after a bridge collapsed in Genoa on Tuesday, killing at least 38 people.