Castles told the Transfer Window podcast: "Kovacic has been offered to Chelsea to facilitate a deal for Courtois".
It was announced on Wednesday evening that Courtois has joined Madrid for a fee in the region of £35m with midfielder Mateo Kovacic heading to Stamford Bridge on loan as part of the deal.
The Blues faced a race against time as to sign the young worldwide before the Premier League transfer window closes on Thursday at 18:00 CEST - tasked with convincing the shot-stopper to move to England, despite Kepa having just renewed his contract.
Courtois, 26, signed for Madrid from Chelsea on Wednesday for a reported 35 million euros after winning two Premier League titles as well as the FA Cup and League Cup in England.
Courtois will depart the west London club after amassing 154 appearances in all competitions for the Blues after starting the last four years at the club as Chelsea's first-choice goalkeeper.
Kepa played 30 times in La Liga for Bilbao last season and kept seven clean sheets as the Basque side finished 16th in the table.
Among the conflicting reports, Marca said that Modric, who joined Real in 2012, "did not consider his current salary matched the level of his performances" and that the player, who turns 33 early in September, was about to sign the best contract of his career.
"I want to continue to add success to this club's history".
Belgium global goalkeeper Courtois is poised to leave for the Bernabeu, with the news that Chelsea have activated Kepa Arrizabalaga's release clause freeing up the 26-year-old to leave.
"I hope I'll be able to adjust & adapt as soon as possible".
"In terms of the price and me being the most expensive keeper in the world, it's something I don't think about", he said. "They are all very comfortable at the club and they have encouraged me to make the move and have an global experience". "He had a very good World Cup and obviously he is a very special player".
According to the indictment, the defendants tried to get early word on the results of tests by Innate Immunotherapeutics Limited. Lawyers for Collins released a statement expressing confidence he would be "completely vindicated and exonerated".
Gates testified that Manafort asked him to float Calk, who was on Trump's economic advisory council, for Secretary of the Army. He has already admitted embezzling some funds from Manafort. "I'm not sure I told them that or not", Gates replied.
Snapchat has experienced a string of declines after lackluster earnings reports since going public in March 2017. Snapchat responded with a few design tweaks to appease users, such as making it easier to find Stories.
A string of disappointing performances in pre-season has also highlighted their need for defensive reinforcements. He added: "It just doesn't look like United are in the right place at the minute to challenge for the league".
Concerns about the trade war have already affected China's currency, which has fallen nearly 9% against the dollar since April. The new China tariffs on the US will impact metals, chemicals, and agriculture-related items.
Student protesters, who has been tweeting on the developments, said that the situation remains tense. Amid the violence, armed men attacked a convoy of cars carrying the USA ambassador on Saturday night.
Country music star Keith Urban's money is no good at Wawa, at least when one South Jersey substitute teacher is around. Reed, who is very shy, has been getting a lot of attention over her interaction with Urban.