Baseball Mystery

The man striding to the dish is a former member of Chief Wahoo's tribe. He has led everyone at his position in homers the past few years and plays for the only baseball team named for a horse.
He is dressed in white and is left-handed.

The backstop is California born and nephew to one of the most famous California baseball men of all time. He also has hit more homers than anyone who ever has at his position. This is his second team he has played for, but the first time he has played for the second team in a city.
His other team was the first team in a city with two teams, though that team was the second team in it's old city.

His battery mate has something in common with the striding man as he too was an Indian Warrior at one time, and was parts of a the most devastating trio of the 90's.

9 batters have gone to the plate before him... none have got on.

Questions:

Who is the striding man?
What team does he play for?
What team did he play for?
What position does he play?
What city is the game in?
Who is catching?
What team does he play for?
What team did he play for?
What team is the second team of his first city?
Who is his uncle?
Where was his first team originally from?
Who is pitching?
What team did he play for?
What hand does he throw with?
Who are the other two people of the trio?
What inning is it?
What is the score?
What is the pitch count?
What position in the batting order does the striding man hold?

Good Luck!