Bayer Leverkusen and Nigeria striker, Victor Boniface, said Xabi Alonso had a particular advantage over other coaches on the training pitch.
“Imagine you’re training and your coach is doing better than you,” Boniface told AFP in an interview.
“Then you want to step up your game.
“For him to be involved in training gives us a boost,” Boniface said of Alonso, who “has won everything that can be won in football.”
“Sometimes he tells me of players he played with, with similar abilities to me. He tries to improve me in my weakest areas.”
Leverkusen host third-placed Stuttgart on Saturday knowing they are four games away from becoming the first team to go through a Bundesliga season unbeaten.
Their runs to the German Cup final, where they face second-division Kaiserslautern, and Europa League semi-finals, where they take on Roma, mean they have gone a record 45 games unbeaten in all competitions this season.
Boniface, 23, was born in the southern Nigerian city of Akure and told AFP he was “always” a football fan.
Earlier this month, he coolly dispatched a penalty to open the scoring in the 5-0 home rout of Werder Bremen which made Leverkusen Bundesliga champions for the first time.
Leverkusen had never previously won a league title in their 120-year history.
The club’s record of second-placed finishes — often somehow snatching defeat from the jaws of victory — saw them tainted with the unwanted ‘Neverkusen’ moniker, but Boniface said he was not nervous when he took the spot-kick.
“No. To be honest, I didn’t feel pressure. We’re football players.
“Moments like this — I took the responsibility to help the team. That’s why I’m here. I love penalties.”
The pressure of a spot-kick pales in comparison with some of the struggles Boniface has already endured in his young career.
He moved from Nigeria to Norway at 18, signing with Bodo/Glimt.
Despite playing a part in the club’s first-ever Norwegian title in 2020, he tore his ACL twice and later said he considered quitting the game.
After a successful stint with Union Saint-Gilloise in Belgium, he moved to Leverkusen last July, receiving his first Super Eagles call-up earlier this season, which he called “a dream come true”.
He scored 16 goals in his first 23 games but was then injured again while preparing for the Africa Cup of Nations with Nigeria, missing four months including his country’s run to the final, where they lost to hosts Ivory Coast.
“It was really difficult when I got injured. When I got injured, in my head I said ‘OK, I’m missing AFCON, I’m going to miss a lot of games for Leverkusen.’
“During that time it was difficult for me, but I have my teammates and a club which takes care of me.
“It’s difficult but at the same time it’s just football. There are good moments and bad — it’s just how you take it.”