- Ronald Koeman says Barcelona's results show
Lionel Messi the club has a "great future." - Barca is undefeated in La Liga since December and reached the final of the Copa Del Rey.
- Messi tried to leave Barcelona last summer and has yet to sign a new contract.
Messi scored a stunning goal as Barca crashed out of the Champions League against Paris Saint Germain on Wednesday.
The teams drew 1-1 on the night, however PSG's 4-1 thrashing of Barcelona in the first leg last month secured a 5-2 aggregate win.
It was the first time Barcelona failed to reach the last eight of the Champions League since 2007.
Despite the disappointment, however, Koeman said after that the rest of the team's results this term prove to Messi, who tried to leave last summer, that the club is on an upwards trajectory.
Barca is undefeated in La Liga since the start of December, and currently sits second in the table, six points behind leaders Atletico Madrid.
It has also reached the final of the Copa Del Rey, where it will face Athletic Bilbao on April 17.
"Leo's seen for a while that the team is improving with the changes we've made," Koeman said following his side's defeat.
"We have youngsters with quality and big futures coming into the team, so it's not a question of having doubts about what this team is capable of.
"But only he can decide his future. No one can help him. He can see this side has a great future, so that's not an argument for him to [leave]."
Messi requested to leave Barcelona in August 2020, shortly after the club's humiliating 8-2 defeat to Bayern Munich in the Champions League quarterfinals.
Though the Argentine ultimately backed down from leaving, he has yet to put pen to paper on a new contract and is free to leave this summer.
On Sunday, Barcelona members elected Joan Laporta as its new president following the resignation of Josep Maria Bartomeu in October.
After his election win, Laporta, who previously held the post between 2003 and 2010, said he believes he can convince Messi to commit his future to the club.
"I am convinced that he wants to stay. And yes, he has already congratulated me for winning," said Laporta, adding: "We will soon have a quiet talk and decide his future."
Barcelona next faces Huesca in La Liga on March 15.