SB 10.43.2

raṅga-dvāraṁ samāsādya
 tasmin nāgam avasthitam
apaśyat kuvalayāpīḍaṁ
 kṛṣṇo ’mbaṣṭha-pracoditam
Synonyms: 
raṅga — of the arena; dvāram — the gate; samāsādya — reaching; tasmin — in that place; nāgam — an elephant; avasthitam — standing; apaśyat — He saw; kuvalayāpīḍam — named Kuvalayāpīḍa; kṛṣṇaḥ — Lord Kṛṣṇa; ambaṣṭha — by his keeper; pracoditam — urged on.
Translation: 
When Lord Kṛṣṇa reached the entrance to the arena, He saw the elephant Kuvalayāpīḍa blocking His way at the urging of his keeper.
Purport: 

The elephant-keeper revealed his malicious intent by blocking Lord Kṛṣṇa’s entrance into the arena.