Frank de Boer could help Crystal Palace to the Europa League if he takes charge at Selhurst Park, says brother Ronald.
The club are close to appointing the former Ajax and Inter Milan boss, 47, to succeed Sam Allardyce, who led Palace to 14th in the Premier League in May following a relegation battle.
"The Champions League is not realistic but with good organisation you can stay in the middle," De Boer said.
"With a great season, maybe you could sneak European football."
Between 2010 and 2016, De Boer coached Ajax, winning the Eredivisie for four consecutive seasons between 2011 and 2015.