Everton loan star Romelu Lukaku aims to send message to José Mourinho

• Belgian determined to be main man at Chelsea
• 'I feel I have a point to prove,' says striker

Romelu Lukaku has said he intends to use a loan move to Everton to show José Mourinho he can be the leading striker at Chelsea.

The Belgium international was allowed to leave Stamford Bridge on loan for a second successive season on deadline day, and rejected rival offers from the Premier League and abroad after a 30-minute telephone conversation with Roberto Martínez convinced him to join Everton.

Lukaku insists it was his decision to leave Chelsea and that he had a gut feeling his chances would be limited before the Europa League winners added Samuel Eto'o to their attack. But the 20-year-old believed he merited a chance to prove himself at Chelsea this term having scored 17 goals during an impressive loan spell at West Bromwich Albion.

"I feel I have a point to prove," said Lukaku, who cost Chelsea around £18m when he arrived from Anderlecht in 2011. "After last year I felt I deserved a chance, as I did the season before going to West Brom. I went to West Brom and did well. I have a point to prove to myself and to Chelsea to show that I can be No1.

"I'm not as frustrated as I was when I was younger. The most important thing is to do well for this club and establish myself as quickly as possible. There has been big respect from Everton, they made a big effort for me and have helped me and my family settle in quickly, and I want to help them."

Lukaku, who was paraded as an Everton player before Chelsea's 1-0 defeat at Goodison Park on Saturday, faced falling further down the pecking order under Mourinho once Eto'o arrived from Anzhi Makhachkala. But he insisted: "I decided to leave before that. I thought maybe I needed one more season [on loan]. I didn't want to fall into the background so that one day people would say 'Romelu Lukaku – he had that good season with West Brom, didn't he?'

"I had very good conversations with the Chelsea manager and he understands me completely. When I told him, he was OK with my decision. I always said that by 21 I wanted to be one of the best players and now I'm 20 and I think this is the year of the confirmation. For me to confirm that status it's better for me to go out on loan than maybe play one in three games, especially in a World Cup year."

Lukaku was encouraged to join Everton by his compatriots Marouane Fellaini, now of Manchester United, and Kevin Mirallas but admitted it was a deadline-day call from Martínez that clinched the deal. The striker said: "Marouane told me it was a good club and he was happy for me to come here but then he left at the same time! He and Mirallas helped but Roberto Martínez convinced me. We spoke for 30 minutes and he told me how he wanted to improve me. He was saying the things I was already thinking about so when a young manager has the same mentality it's good to work with.

"There were other clubs interested, a lot of Premier League clubs and also foreign teams, but I was convinced Everton was the right place. It's just that little step closer to the top teams. When you do well for a team like Everton it's easier to go into a top team and establish yourself."