Use the .form-inline class in Bootstrap to make a <form> left aligned.
You can try to run the following code to implement .form-inline class
Example
Live Demo
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap Example</title>
<link href = "/bootstrap/css/bootstrap.min.css" rel = "stylesheet">
<script src = "/scripts/jquery.min.js"></script>
<script src = "/bootstrap/js/bootstrap.min.js"></script>
</head>
<body>
<form class = "form-inline" role = "form">
<div class = "form-group">
<label class = "sr-only" for = "name">Name</label>
<input type = "text" class = "form-control" id = "name" placeholder = "Enter Player Name">
</div>
<div class = "form-group">
<label class = "sr-only" for = "name">Name</label>
<input type = "text" class = "form-control" id = "name" placeholder = "Enter Player Country">
</div>
<button type = "submit" class = "btn btn-primary">Submit</button>
</form>
</body>
</html>