Aston Villa have signed Barnsley right-back James Bree and FC Basel midfielder Birkir Bjarnason.
Bree, 19, has arrived on a four-and-a-half-year deal for what Barnsley call a "substantial fee", having made 61 appearances for the Tykes.
Iceland international Bjarnason, 28, has joined Villa on a three-and-a-half-year deal for an undisclosed fee.
Formerly of Belgian club Standard Liege and Italian side Sampdoria, he scored his country's first goal at Euro 2016.
"It's a very big club. I am now looking forward to getting out on to the pitch and helping the team," Bjarnason told Villa's club website.