Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the round number when nationality was United States, and player is Jeffrey Foss?

### Inputs:
table_name: table, columns: ['Round', 'Pick', 'Player', 'Position', 'Nationality', 'College']

### Response:
SELECT COUNT Round FROM table WHERE Nationality = united states AND Player = jeffrey foss