Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Sport | League | Tier | Club | Stadium |
| --- | --- | --- | --- | --- |
| Football | Chinese Super League | 1st | Guangzhou Evergrande | Tianhe Stadium |
| Football | Chinese Super League | 1st | Guangzhou R&F | Yuexiushan Stadium |
| Football | China League One | 2nd | Guangdong Sunray Cave | Guangdong Provincial People's Stadium |
| Basketball | National Basketball League | 2nd | Guangzhou Freemen | Tianhe Stadium |
| Basketball | National Basketball League | 2nd | Guangzhou Six-rice | Huangpu Stadium |
| Volleyball | Chinese Volleyball League | 1st | Guangdong Evergrande Women's Volleyball Club | Guangzhou Sport University |
| Baseball | China Baseball League | 1st | Guangdong Leopards | Guangdong Olympic Stadium |
Question:
Which tier is for football at Tianhe Stadium?
Answer:
1st