Kansas City, Mo. ? Buck O’Neil remained hospitalized Tuesday with what was described as extreme fatigue, and friends are becoming increasingly worried about the 94-year-old Negro Leagues legend.

O’Neil spent about three days in the hospital in August, then was readmitted about 10 days ago. An official of the Negro Leagues Museum in Kansas City said he visited Buck on Tuesday and that he was still very weak.

“He’s very fatigued and he’s lost his voice,” said Bob Kendrick. “Buck can only talk at a whisper. It’s my understanding that doctors are continuing to do tests and they still are not sure what the problem is.

“Everybody is very concerned. He’s almost 95 years old, and he’s been on an exhausting schedule since last February.”

O’Neil barely missed being voted into the Baseball Hall of Fame in February when a special committee considered several dozen Negro League and pre-Negro League figures.

His many noteworthy accomplishments during an eventful lifetime of baseball include being a former star player and manager for the Kansas City Monarchs in the 1940s and ’50s and becoming the first African-American to serve as a coach in the major leagues.

For many years, he has traveled the country keeping alive the legacy of the Negro Leagues and its unique niche in American history. He has become one of the most-sought speakers in all of sports.

“Since February, he has not had the schedule that one would ever think that a 94-year old man would have,” Kendrick said. “The wide array of emotion, and the mental and physical drain of not getting voted into the Hall of Fame I’m sure took its toll.

O’Neil first was hospitalized shortly after he batted in the first inning of the Northern League All-Star game and was intentionally walked, becoming the oldest man ever to appear in a professional baseball game. The temperature that afternoon when he stood at the plate and actually swung at a pitch was in the 90s.

In the meantime, friends are planning a huge party in November marking O’Neil’s 95th birthday. A host of baseball stars and other sports figures, along with politicians, entertainers and community leaders, are expected among the roughly 750 guests.